| NATIONAL 7-P-50 | | | | | |
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| LINERS & LINER SEALS | | | | | | |
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| VALVES, SEATS, SPRINGS & INSERTS | | | | | |
| HIGH CHROME | CERAMIC ZIRCONIA | LINER SEAL | | | |
| 4” | SO-0257-40-HC | SO-0257-40-CZ | SO-G-0272 | VALVE ASSY – Urethane | SO-U5B-05 | SO-5-V1 |
| 41/” | SO-0257-44-HC | SO-0257-44-CZ | SO-G-0274 | VALVE ASSY – Urethane HT | SO-U5B-05-HT | SO-5-V1-HT |
| 5” | SO-0257-50-HC | SO-0257-50-CZ | SO-G-0276 | VALVE ASSY – Rubber | SO-5B-05 | SO-5-V1R |
| 51/” | SO-0257-54-HC | SO-0257-54-CZ | SO-G-0278 | SEAT | SO-5DD-B3 | SO-5-S3 |
| 6” | SO-0257-60-HC | SO-0257-60-CZ | SO-G-0280 | SPRING | SO-5710-111 | SO-5710-110 |
| 61/” | SO-0257-62-HC | SO-0257-62-CZ | SO-G-0268 | INSERT – Urethane | SO-UDD-5B | SO-5-I |
| | | | INSERT – Urethane HT | SO-UDD-5B-HT | SO-5-I-HT |
| | | | INSERT – Rubber | SO-DD-5B | SO-5-IR |
| | | | SEAT PULLER ASSEMBLY * Does not include puller head | |
| STEM GUIDE | | | | PULLER ASSEMBLY * SO-1700 SO-1700 | |
| FULL OPEN | | | | PULLER HEAD SO-1700-5 SO-D-5 | |
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| PISTONS | | | | | | |
| | | | | | |
| SIZE | BORE HUB 0 SIZE | REPLACEABLE RUBBER PISTON ASSY | PISTON REPLACEMENT RUBBER KIT | SINGLE DUROMETER URETHANE BONDED | DUAL DUROMETER URETHANE BONDED | URETHANE BONDED HIGH TEMP. |
| 4” | 112” & 15/8” | SO-40-HK-14 / 15 | SO-40-HK | SO-40-U | SO-40-3 | SO-40-3-HT |
| 41/” | 112” & 15/8” | SO-44-HK-14 / 15 | SO-44-HK | SO-44-U | SO-44-3 | SO-44-3-HT |
| 5” | 112” & 15/8” | SO-50-HB-14 / 15 | SO-50-HB | SO-50-U | SO-50-3 | SO-50-3-HT |
| 51/” | 112” & 15/8” | SO-54-HB-14 / 15 | SO-54-HB | SO-54-U | SO-54-3 | SO-54-3-HT |
| 6” | 112” & 15/8” | SO-60-HB-14 / 15 | SO-60-HB | SO-60-U | SO-60-3 | SO-60-3-HT |
| 61/” | 112” & 15/8” | SO-62-HL-14 / 15 | SO-62-HL | SO-62-U | SO-62-3 | SO-62-3-HT |
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| PISTON RODS, EXTENSION RODS & ACCESSORIES | | | | |
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| DIAMETER | PISTON ROD | EXTENSION ROD | ROD CLAMP | SUB ROD | PISTON ROD NUT |
| PART NO. | 15/8” | SO-0257-A | SO-16-0257 | SO-24-0257 | SO-0257-B | SO-7403364 |
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| GASKETS | | | | | | |
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| VALVE CAP (HT) | SO-61-0253 – | CYLINDER HEAD (HT) | | | | |
| NATIONAL 8-P-80 | | | | | |
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| LINERS & LINER SEALS | | | | | | |
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| VALVES, SEATS, SPRINGS & INSERTS | | | | | |
| HIGH CHROME | CERAMIC ZIRCONIA | LINER SEAL | | | | |
| STYLE | STEM GUIDE (CROSS ARM) | FULL OPEN | | | | |
| VALVE ASSY – Urethane | SO-U5B-EH | SO-6-V1 | | | | |
| VALVE ASSY – Urethane HT | SO-U5B-EH-HT | SO-6-V1-HT | | | | |
| VALVE ASSY – Rubber | SO-5B-EH | SO-6-V1R | | | | |
| SEAT | SO-6ADD-B4 | SO-6-S4 | | | | |
| SPRING | SO-5710-115 | SO-5710-115L | | | | |
| INSERT – Urethane | SO-UDD-6AB | SO-6-I | | | | |
| INSERT – Urethane HT | SO-UDD-6AB-HT | SO-6-I-HT | | | | |
| INSERT – Rubber | SO-DD-6AB | SO-6-IR | | | | |
| SEAT PULLER ASSEMBLY * Does not include puller head | | | | |
| PULLER ASSEMBLY * | SO-1700 | SO-1700 | | | | |
| PULLER HEAD | SO-1700-6 | SO-D-6 | | | | |
| | | | | | |
| 4′ | SO-0256-40-HC | SO-0256-40-CZ | SO-G-0272 | | | |
| 41/” | SO-0256-44-HC | SO-0256-44-CZ | SO-G-0274 | | | |
| 5′ | SO-0256-50-HC | SO-0256-50-CZ | SO-G-0276 | | | |
| 51/” | SO-0256-54-HC | SO-0256-54-CZ | SO-G-0278 | | | |
| 6′ | SO-0256-60-HC | SO-0256-60-CZ | SO-G-0280 | | | |
| 61/4” | SO-0256-62-HC | SO-0256-62-CZ | SO-G-0268 | | | |
| | | | | | |
| CHROME PLATED | LINER SEAL | | | | |
| SO-0256-64-CP | SO-G-0268 | | | | |
| PISTONS | | | | | | |
| | | | | | |
| SIZE | BORE HUB 0 SIZE | REPLACEABLE RUBBER PISTON ASSY | PISTON REPLACEMENT RUBBER KIT | SINGLE DUROMETER URETHANE BONDED | DUAL DUROMETER URETHANE BONDED | URETHANE BONDED HIGH TEMP. |
| 4′ | 1W& 15/8” | SO-40-HK-14 / 15 | SO-40-HK | SO-40-U | SO-40-3 | SO-40-3-HT |
| 41/” | 1W& 15/8” | SO-44-HK-14 / 15 | SO-44-HK | SO-44-U | SO-44-3 | SO-44-3-HT |
| 5′ | 1W& 15/8” | SO-50-HB-14 / 15 | SO-50-HB | SO-50-U | SO-50-3 | SO-50-3-HT |
| 51/” | 1W& 15/8” | SO-54-HB-14 / 15 | SO-54-HB | SO-54-U | SO-54-3 | SO-54-3-HT |
| 6′ | 1W& 15/8” | SO-60-HB-14 / 15 | SO-60-HB | SO-60-U | SO-60-3 | SO-60-3-HT |
| 61/” | 1W& 15/8” | SO-62-HL-14 / 15 | SO-62-HL | SO-62-U | SO-62-3 | SO-62-3-HT |
| 61/” | 1W& 15/8” | SO-64-HL-14 / 15 | SO-64-HL | SO-64-U | SO-64-3 | SO-64-3-HT |
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| PISTON RODS, EXTENSION RODS & ACCESSORIES | | | | |
| | | | | | |
| DIAMETER | PISTON ROD | EXTENSION ROD | ROD CLAMP | SUB ROD | PISTON ROD NUT |
| PART NO. | 15/8” | SO-0259-A | SO-16-0259 | SO-24-0259 | SO-0259-B | SO-7403364 |
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| GASKETS | | | | | | |
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| VALVE CAP (HT) | SO-61-0255 – | CYLINDER HEAD (HT) | | | | |
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| 2 FLUID END PUMP PARTS | | | | | | |
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| NATIONAL 9-P-100 | | | | | |
| LINERS & LINER SEALS | | | | | | |
| | | | | | |
| VALVES, SEATS, SPRINGS & INSERTS | | | | | |
| HIGH CHROME | CERAMIC ZIRCONIA | LINER SEAL | | | | |
| STYLE | STEM GUIDE (CROSS ARM) | FULL OPEN | | | | |
| VALVE ASSY – Urethane | SO-U5B-EH | SO-6-V1 | | | | |
| VALVE ASSY – Urethane HT | SO-U5B-EH-HT | SO-6-V1-HT | | | | |
| VALVE ASSY – Rubber | SO-5B-EH | SO-6-V1R | | | | |
| SEAT | SO-6ADD-B4 | SO-6-S4 | | | | |
| SPRING | SO-5710-115 | SO-5710-115L | | | | |
| INSERT – Urethane | SO-UDD-6AB | SO-6-I | | | | |
| INSERT – Urethane HT | SO-UDD-6AB-HT | SO-6-I-HT | | | | |
| INSERT – Rubber | SO-DD-6AB | SO-6-IR | | | | |
| SEAT PULLER ASSEMBLY * Does not include puller head | | | | |
| PULLER ASSEMBLY * | SO-1700 | SO-1700 | | | | |
| PULLER HEAD | SO-1700-6 | SO-D-6 | | | | |
| | | | | | |
| 41/” | SO-0255-44-HC | SO-0255-44-CZ | SO-G-0274 | | | |
| 5” | SO-0255-50-HC | SO-0255-50-CZ | SO-G-0265 | | | |
| 51/” | SO-0255-54-HC | SO-0255-54-CZ | SO-G-0263 | | | |
| 6” | SO-0255-60-HC | SO-0255-60-CZ | SO-G-0261 | | | |
| 61/4” | SO-0255-62-HC | SO-0255-62-CZ | SO-G-0283 | | | |
| 61/” | SO-0255-64-HC | SO-0255-64-CZ | SO-G-0283 | | | |
| | | | | | |
| 63/4” | CHROME PLATED | LINER SEAL | | | | |
| SO-0255-66-CP | SO-G-0287 | | | | |
| PISTONS | | | | | | |
| | | | | | |
| SIZE | BORE HUB 0 SIZE | REPLACEABLE RUBBER PISTON ASSY | PISTON REPLACEMENT RUBBER KIT | SINGLE DUROMETER URETHANE BONDED | DUAL DUROMETER URETHANE BONDED | URETHANE BONDED HIGH TEMP. |
| 41/” | 1W& 15/8” | SO-44-HK-14 / 15 | SO-44-HK | SO-44-U | SO-44-3 | SO-44-3-HT |
| 5” | 1W& 15/8” | SO-50-HB-14 / 15 | SO-50-HB | SO-50-U | SO-50-3 | SO-50-3-HT |
| 51/” | 1W& 15/8” | SO-54-HB-14 / 15 | SO-54-HB | SO-54-U | SO-54-3 | SO-54-3-HT |
| 6” | 1W& 15/8” | SO-60-HB-14 / 15 | SO-60-HB | SO-60-U | SO-60-3 | SO-60-3-HT |
| 61/4” | 1W& 15/8” | SO-62-HL-14 / 15 | SO-62-HL | SO-62-U | SO-62-3 | SO-62-3-HT |
| 61/” | 1W& 15/8” | SO-64-HL-14 / 15 | SO-64-HL | SO-64-U | SO-64-3 | SO-64-3-HT |
| 63/4” | 1W& 15/8” | SO-66-HL-14 / 15 | SO-66-HL | – | – | – |
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| PISTON RODS, EXTENSION RODS & ACCESSORIES | | | | |
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| DIAMETER | PISTON ROD | EXTENSION ROD | ROD CLAMP | SUB ROD | PISTON ROD NUT |
| PART NO. | 15/8” | SO-0260-A | SO-16-0260 | SO-24-0260 | SO-0260-B | SO-7403364 |
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| GASKETS | | | | | | |
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| VALVE CAP (HT) | SO-61-0255 – | CYLINDER HEAD (HT) | | | | |
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| FLUID END PUMP PARTS 3 | | | | | | |
| NATIONAL 10-P-130 | | | | | |
| LINERS & LINER SEALS | | | | | | |
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| VALVES, SEATS, SPRINGS & INSERTS | | | | | |
| HIGH CHROME | CERAMIC ZIRCONIA | LINER SEAL | | | | |
| STYLE | STEM GUIDE (CROSS ARM) | FULL OPEN | | | | |
| VALVE ASSY – Urethane | SO-U5B-EH | SO-6-V1 | | | | |
| VALVE ASSY – Urethane HT | SO-U5B-EH-HT | SO-6-V1-HT | | | | |
| VALVE ASSY – Rubber | SO-5B-EH | SO-6-V1R | | | | |
| SEAT | SO-6ADD-B4 | SO-6-S4 | | | | |
| SPRING | SO-5710-115 | SO-5710-115L | | | | |
| INSERT – Urethane | SO-UDD-6AB | SO-6-I | | | | |
| INSERT – Urethane HT | SO-UDD-6AB-HT | SO-6-I-HT | | | | |
| INSERT – Rubber | SO-DD-6AB | SO-6-IR | | | | |
| SEAT PULLER ASSEMBLY * Does not include puller head | | | | |
| PULLER ASSEMBLY * | SO-1700 | SO-1700 | | | | |
| PULLER HEAD | SO-1700-6 | SO-D-6 | | | | |
| | | | | | |
| 41/” | SO-0255-44-HC | SO-0255-44-CZ | SO-G-0274 | | | |
| 5” | SO-0255-50-HC | SO-0255-50-CZ | SO-G-0265 | | | |
| 51/” | SO-0255-54-HC | SO-0255-54-CZ | SO-G-0263 | | | |
| 6” | SO-0255-60-HC | SO-0255-60-CZ | SO-G-0261 | | | |
| 61/4” | SO-0255-62-HC | SO-0255-62-CZ | SO-G-0283 | | | |
| 61/” | SO-0255-64-HC | SO-0255-64-CZ | SO-G-0238 | | | |
| | | | | | |
| 63/4” | CHROME PLATED | LINER SEAL | | | | |
| SO-0255-66-CP | SO-G-0287 | | | | |
| PISTONS | | | | | | |
| | | | | | |
| SIZE | BORE HUB 0 SIZE | REPLACEABLE RUBBER PISTON ASSY | PISTON REPLACEMENT RUBBER KIT | SINGLE DUROMETER URETHANE BONDED | DUAL DUROMETER URETHANE BONDED | URETHANE BONDED HIGH TEMP. |
| 41/” | 1W& 15/8” | SO-44-HK-14 / 15 | SO-44-HK | SO-44-U | SO-44-3 | SO-44-3-HT |
| 5” | 1W& 15/8” | SO-50-HB-14 / 15 | SO-50-HB | SO-50-U | SO-50-3 | SO-50-3-HT |
| 51/” | 1W& 15/8” | SO-54-HB-14 / 15 | SO-54-HB | SO-54-U | SO-54-3 | SO-54-3-HT |
| 6” | 1W& 15/8” | SO-60-HB-14 / 15 | SO-60-HB | SO-60-U | SO-60-3 | SO-60-3-HT |
| 61/4” | 1W& 15/8” | SO-62-HL-14 / 15 | SO-62-HL | SO-62-U | SO-62-3 | SO-62-3-HT |
| 61/” | 1W& 15/8” | SO-64-HL-14 / 15 | SO-64-HL | SO-64-U | SO-64-3 | SO-64-3-HT |
| 63/4” | 1W& 15/8” | SO-66-HL-14 / 15 | SO-66-HL | – | – | – |
| | | | | | |
| PISTON RODS, EXTENSION RODS & ACCESSORIES | | | | |
| | | | | | |
| DIAMETER | PISTON ROD | EXTENSION ROD | ROD CLAMP | SUB ROD | PISTON ROD NUT |
| PART NO. | 15/8” | SO-0256-A | SO-16-0256 | SO-24-0256 | SO-0256-B | SO-7403364 |
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| GASKETS | | | | | | |
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| VALVE CAP (HT) | SO-61-0255 – | CYLINDER HEAD (HT) | | | | |
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| NATIONAL 12-P-160 | | | | | |
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| LINERS & LINER SEALS | | | | | | |
| VALVES, SEATS, SPRINGS & INSERTS | | | | | |
| | | | | | |
| SIZE | HIGH CHROME | CERAMIC ZIRCONIA | LINER SEAL | | | |
| 4” | SO-0259-40-HC | SO-0259-40-CZ | SO-G-0265 | | | |
| 4W | SO-0259-44-HC | SO-0259-44-CZ | SO-G-0265 | | | |
| 5” | SO-0259-50-HC | SO-0259-50-CZ | SO-G-0265 | | | |
| 5W | SO-0259-54-HC | SO-0259-54-CZ | SO-G-0263 | | | |
| 6” | SO-0259-60-HC | SO-0259-60-CZ | SO-G-0261 | | | |
| 6’/4” | SO-0259-62-HC | SO-0259-62-CZ | SO-G-0283 | | | |
| 6W | SO-0259-64-HC | SO-0259-64-CZ | SO-G-0284 | | | |
| 63/4” | SO-0259-66-HC | SO-0259-66-CZ | SO-G-0287 | | | |
| 7” | SO-0259-70-HC | SO-0259-70-CZ | SO-G-0285 | | | |
| 7V4” | SO-0259-72-HC | SO-0259-72-CZ | SO-G-0286 | | | |
| 7W | SO-0259-74-HC | SO-0259-74-CZ | – | | | |
| | | | | | |
| STYLE | STEM GUIDE (CROSS ARM) | FULL OPEN | | | | |
| VALVE ASSY – Urethane | SO-U5C-EEF | SO-7-V1 | | | | |
| VALVE ASSY – Urethane HT | SO-U5C-EEF-HT | SO-7-V1-HT | | | | |
| VALVE ASSY – Rubber | SO-5C-EEF | SO-7-V1R | | | | |
| SEAT | SO-7DD-B12 | SO-7-S12 | | | | |
| SPRING | SO-5710-115 | SO-5710-115L | | | | |
| INSERT – Urethane | SO-UDD-7B | SO-7-I | | | | |
| INSERT – Urethane HT | SO-UDD-7B-HT | SO-7-I-HT | | | | |
| INSERT – Rubber | SO-DD-7B | SO-7-IR | | | | |
| SEAT PULLER ASSEMBLY * Does not include puller head | | | | |
| PULLER ASSEMBLY * | SO-1700 | SO-1700 | | | | |
| PULLER HEAD | SO-1700-7 | SO-D-7 | | | | |
| | | | | | |
| PISTONS | | | | | | |
| | | | | | |
| SIZE | BORE HUB 0 SIZE | REPLACEABLE RUBBER PISTON ASSY | PISTON REPLACEMENT RUBBER KIT | SINGLE DUROMETER URETHANE BONDED | DUAL DUROMETER URETHANE BONDED | URETHANE BONDED HIGH TEMP. |
| 4” | 1W& 15/8” | SO-40-HK-14 / 15 | SO-40-HK | SO-40-U | SO-40-3 | SO-40-3-HT |
| 41/2” | 1W& 15/8” | SO-44-HK-14 / 15 | SO-44-HK | SO-44-U | SO-44-3 | SO-44-3-HT |
| 5” | 1W& 15/8” | SO-50-HB-14 / 15 | SO-50-HB | SO-50-U | SO-50-3 | SO-50-3-HT |
| 51/2” | 1W& 15/8” | SO-54-HB-14 / 15 | SO-54-HB | SO-54-U | SO-54-3 | SO-54-3-HT |
| 6” | 1W& 15/8” | SO-60-HB-14 / 15 | SO-60-HB | SO-60-U | SO-60-3 | SO-60-3-HT |
| 61/4” | 1W& 15/8” | SO-62-HL-14 / 15 | SO-62-HL | SO-62-U | SO-62-3 | SO-62-3-HT |
| 61/2” | 1W& 15/8” | SO-64-HL-14 / 15 | SO-64-HL | SO-64-U | SO-64-3 | SO-64-3-HT |
| 63/4” | 1W& 15/8” | SO-66-HL-14 / 15 | SO-66-HL | – | – | – |
| 7” | 1W& 15/8” | SO-70-HL-14 / 15 | SO-70-HL | SO-70-U | SO-70-3 | SO-70-3-HT |
| 71/4” | 1W& 15/8” | SO-72-HL-14 / 15 | SO-72-HL | SO-72-U | SO-72-3 | SO-72-3-HT |
| 71/” | 1W& 15/8” | SO-74-HL-14 / 15 | SO-74-HL | SO-74-U | SO-74-3 | SO-74-3-HT |
| | | | | | |
| PISTON RODS, EXTENSION RODS & ACCESSORIES | | | | |
| | | | | | |
| DIAMETER | PISTON ROD | EXTENSION ROD | ROD CLAMP | SUB ROD | PISTON ROD NUT |
| PART NO. | 15/8” | SO-0258-A | SO-16-0258 | SO-24-0258 | SO-0258-B | SO-7403364 |
| | | | | | |
| GASKETS | | | | | | |
| | | | | | |
| VALVE CAP (HT) | SO-G-0711 SO-G-0711-HT | CYLINDER HEAD (HT) | – | | | |
| | | | | | |
| NATIONAL 14-P-220 | | | | | |
| | | | | | |
| LINERS & LINER SEALS | | | | | | |
| VALVES, SEATS, SPRINGS & INSERTS | | | | | |
| | | | | | |
| SIZE | HIGH CHROME | CERAMIC ZIRCONIA | LINER SEAL | | | |
| 4W | SO-1250-44-HC | SO-1250-44-CZ | – | | | |
| 5” | SO-1250-50-HC | SO-1250-50-CZ | SO-G-0264 | | | |
| 5W | SO-1250-54-HC | SO-1250-54-CZ | SO-G-0263 | | | |
| 6” | SO-1250-60-HC | SO-1250-60-CZ | SO-G-0261 | | | |
| 6’/4” | SO-1250-62-HC | SO-1250-62-CZ | SO-G-0283 | | | |
| 6W | SO-1250-64-HC | SO-1250-64-CZ | SO-G-0284 | | | |
| 63/4” | SO-1250-66-HC | SO-1250-66-CZ | SO-G-0287 | | | |
| 7” | SO-1250-70-HC | SO-1250-70-CZ | SO-G-0285 | | | |
| iy/’ | SO-1250-72-HC | SO-1250-72-CZ | SO-G-0286 | | | |
| 7W | SO-1250-74-HC | SO-1250-74-CZ | – | | | |
| 8” | SO-1250-80-HC | SO-1250-80-CZ | – | | | |
| | | | | | |
| STYLE | STEM GUIDE (CROSS ARM) | FULL OPEN | | | | |
| VALVE ASSY – Urethane | SO-U5B-23 | SO-8-V2 | | | | |
| VALVE ASSY – Urethane HT | SO-U5B-23-HT | SO-8-V2-HT | | | | |
| VALVE ASSY – Rubber | SO-5B-23 | SO-8-V2R | | | | |
| SEAT | SO-8DD-B7 | SO-8-S7 | | | | |
| SPRING | SO-5710-023 | SO-5710-115L | | | | |
| INSERT – Urethane | SO-UDD-8B | SO-8-I | | | | |
| INSERT – Urethane HT | SO-UDD-8B-HT | SO-8-I-HT | | | | |
| INSERT – Rubber | SO-DD-8B | SO-8-IR | | | | |
| SEAT PULLER ASSEMBLY * Does not include puller head | | | | |
| PULLER ASSEMBLY * | SO-1700 | SO-1700 | | | | |
| PULLER HEAD | SO-1700-8 | SO-D-8 | | | | |
| | | | | | |
| PISTONS | | | | | | |
| | | | | | |
| SIZE | BORE HUB 0 SIZE | REPLACEABLE RUBBER PISTON ASSY | PISTON REPLACEMENT RUBBER KIT | SINGLE DUROMETER URETHANE BONDED | DUAL DUROMETER URETHANE BONDED | URETHANE BONDED HIGH TEMP. |
| 41/2” | 1W& 15/8” | SO-44-HK-14 / 15 | SO-44-HK | SO-44-U | SO-44-3 | SO-44-3-HT |
| 5” | 1W& 15/8” | SO-50-HB-14 / 15 | SO-50-HB | SO-50-U | SO-50-3 | SO-50-3-HT |
| 51/2” | 1W& 15/8” | SO-54-HB-14 / 15 | SO-54-HB | SO-54-U | SO-54-3 | SO-54-3-HT |
| 6” | 1W& 15/8” | SO-60-HB-14 / 15 | SO-60-HB | SO-60-U | SO-60-3 | SO-60-3-HT |
| 61/4” | 1W& 15/8” | SO-62-HL-14 / 15 | SO-62-HL | SO-62-U | SO-62-3 | SO-62-3-HT |
| 61/2” | 1W& 15/8” | SO-64-HL-14 / 15 | SO-64-HL | SO-64-U | SO-64-3 | SO-64-3-HT |
| 63/4” | 1W& 15/8” | SO-66-HL-14 / 15 | SO-66-HL | – | – | – |
| 7” | 1W& 15/8” | SO-70-HL-14 / 15 | SO-70-HL | SO-70-U | SO-70-3 | SO-70-3-HT |
| 71/4” | 1W& 15/8” | SO-72-HL-14 / 15 | SO-72-HL | SO-72-U | SO-72-3 | SO-72-3-HT |
| 71/” | 1W& 15/8” | SO-74-HL-14 / 15 | SO-74-HL | SO-74-U | SO-74-3 | SO-74-3-HT |
| 8” | 1W& 15/8” | SO-80-HL-14 / 15 | SO-80-HL | SO-80-U | SO-80-3 | SO-80-3-HT |
| | | | | | |
| PISTON RODS, EXTENSION RODS & ACCESSORIES | | | | |
| | | | | | |
| DIAMETER | PISTON ROD | EXTENSION ROD | ROD CLAMP | SUB ROD | PISTON ROD NUT |
| PART NO. | 15/8” | SO-0250-A | SO-16-0250 | SO-24-0250 | SO-0250-B | SO-7403364 |
| | | | | | |
| 6 FLUID END PUMP PARTS | | | | | | |
| NATIONAL JWS-165L | | | | | |
| | | | | | |
| LINERS & LINER SEALS | | | | VALVES, SEATS, SPRINGS & INSERTS | |
| HIGH CHROME | CERAMIC ZIRCONIA | LINER SEAL | | FULL OPEN | |
| 3” | SO-0240-30-HC | SO-0240-30-CZ | SO-1712064 | VALVE ASSY – Suction | SO-2-V1 | |
| 3W | SO-0240-34-HC | SO-0240-34-CZ | SO-1712064 | VALVE ASSY – Discharge | SO-2-V1 | |
| 4” | SO-0240-40-HC | SO-0240-40-CZ | SO-1712064 | SEAT – Suction | SO-2-S3 | |
| 4W | SO-0240-44-HC | SO-0240-44-CZ | SO-1712064 | SEAT – Discharge SPRING – Suction SPRING – Discharge CAGE INSERT – Urethane | SO-2-S4 SO-5710-003 SO-5710-003 SO-2-C1 SO-2-I | |
| | | | | | |
| | | | | | |
| PISTONS | | | | | | |
| | | | | | |
| SIZE | BORE HUB 0 SIZE | REPLACEABLE RUBBER PISTON ASSY | PISTON REPLACEMENT RUBBER KIT | SINGLE DUROMETER URETHANE BONDED | | |
| 3” | 1” | SO-30-HA-10 | SO-30-HA | – | | |
| 31/” | 1” | SO-34-HK-10 | SO-34-HK | – | | |
| 4” | 1” | SO-40-HK-10 | SO-40-HK | SO-40-10-U | | |
| 41/” | 1” | SO-44-HK-10 | SO-44-HK | SO-44-10-U | | |
| | | | | | |
| PISTON RODS, EXTENSION RODS & ACCESSORIES | | | | |
| | | | | | |
| DIAMETER | PISTON ROD | EXTENSION ROD | ROD CLAMP | SUB ROD | PISTON ROD NUT |
| PART NO. | 1” | SO-0238 | SO-16-0238 | SO-24-0238 | – | SO-7403224 |
| | | | | | |
| NATIONAL JWS-340 | | | | | |
| | | | | | |
| LINERS & LINER SEALS | | | | VALVES, SEATS, SPRINGS & INSERTS | |
| HIGH CHROME | CERAMIC ZIRCONIA | LINER SEAL | | FULL OPEN | |
| 3” | SO-0240-30-HC | SO-0240-30-CZ | SO-1712064 | VALVE ASSY – Suction | SO-2-V1 | |
| 3W | SO-0240-34-HC | SO-0240-34-CZ | SO-1712064 | VALVE ASSY – Discharge | SO-2-V1 | |
| 4” | SO-0240-40-HC | SO-0240-40-CZ | SO-1712064 | SEAT – Suction | SO-2-S3 | |
| 4W | SO-0240-44-HC | SO-0240-44-CZ | SO-1712064 | SEAT – Discharge SPRING – Suction SPRING – Discharge CAGE INSERT – Urethane | SO-2-S4 SO-5710-003 SO-5710-003 SO-2-C1 SO-2-I | |
| | | | | | |
| PISTONS | | | | | | |
| | | | | | |
| SIZE | BORE HUB 0 SIZE | REPLACEABLE RUBBER PISTON ASSY | PISTON REPLACEMENT RUBBER KIT | SINGLE DUROMETER URETHANE BONDED | | |
| 3” | 1” | SO-30-HA-10 | SO-30-HA | – | | |
| 31/” | 1” | SO-34-HK-10 | SO-34-HK | – | | |
| 4” | 1” | SO-40-HK-10 | SO-40-HK | SO-40-10-U | | |
| 41/” | 1” | SO-44-HK-10 | SO-44-HK | SO-44-10-U | | |
| | | | | | |
| PISTON RODS, EXTENSION RODS & ACCESSORIES | | | | |
| | | | | | |
| DIAMETER | PISTON ROD | EXTENSION ROD | ROD CLAMP | SUB ROD | PISTON ROD NUT |
| PART NO. | 1” | SO-0238 | SO-16-0238 | SO-24-0238 | – | SO-7403224 |
| | | | | | |
| 8 FLUID END PUMP PARTS | | | | | | |
| NATIONAL JWS-400 | | | | | |
| | | | | | |
| LINERS & LINER SEALS | | | | VALVES, SEATS, SPRINGS & INSERTS | |
| HIGH CHROME | CERAMIC ZIRCONIA | LINER SEAL | | FULL OPEN | |
| 4” | SO-0237-40-HC | SO-0237-40-CZ | SO-G-0272 | VALVE ASSY – Suction | SO-2-V1 | |
| 4W | SO-0237-44-HC | SO-0237-44-CZ | SO-G-0274 | VALVE ASSY – Discharge | SO-2-V1 | |
| 5” | SO-0237-50-HC | SO-0237-50-CZ | SO-G-0276 | SEAT – Suction | SO-2-S3 | |
| 51/” | SO-0237-54-HC | SO-0237-54-CZ | SO-G-0278 | SEAT – Discharge | SO-2-S4 | |
| | | | SPRING – Suction | | |
| | | | SPRING – Discharge | | |
| | | | INSERT – Urethane | SO-2-I | |
| PISTONS | | | | | | |
| | | | | | |
| SIZE | BORE HUB 0 SIZE | REPLACEABLE RUBBER PISTON ASSY | PISTON REPLACEMENT RUBBER KIT | SINGLE DUROMETER URETHANE BONDED | | |
| 4” | 1” | SO-40-HK-10 | SO-40-HK | SO-40-10-U | | |
| 4W | 1” | SO-44-HK-10 | SO-44-HK | SO-44-10-U | | |
| 5” | 1” | SO-50-HB-10 | SO-50-HB | SO-50-10-U | | |
| 5W | 1” | SO-54-HB-10 | SO-54-HB | SO-54-10-U | | |
| | | | | | |
| PISTON RODS, EXTENSION RODS & ACCESSORIES | | | | |
| | | | | | |
| DIAMETER | PISTON ROD | EXTENSION ROD | ROD CLAMP | SUB ROD | PISTON ROD NUT |
| PART NO. | 1” | SO-2239-A | SO-16-2239 | SO-24-2239 | SO-2239-B | SO-7403224 |
