Description
SOUTHWEST MUD PUMP PARTS LIST
OEM_National_8-P-80
| FLUID END TYPE | MODEL OF PUMP | SIZE OF PUMP | |||
| OEM 5000 PSI | NATIONAL 8-P-80 | 6-1/4” X 8-1/2” |
| ITEM NO. | PART NO. | DESCRIPTION | QTY. REQ’D |
| 1 | 1371YXX | LINER (REFER TO GUIDE TO ORDERING CHART FOR TYPE (Y) AND FOR SIZE (XX) | 3 |
| 2 | 2971-XX | LINER SEAL (refer to guide to ordering chart for type and size (xx) | 3 |
| 3 | 8495-3 | WEARPLATE | 3 |
| 4 | 2988 | WEARPLATE AND MODULE SEAL | 6 |
| 5 | XX-BYY | PISTON (REFER TO GUIDE TO ORDERING CHART FOR SIZE (XX) AND FOR TYPE (YY) | 3 |
| 6 | 568-225 | PISTON SEAL | 3 |
| 7 | 6271-32 | PISTON ROD (WITH ELASTIC STOP NUT) | 3 |
| 8 | API-4ESN | PISTON ROD NUT | 3 |
| 9 | 6271-1 | SUB ROD | 3 |
| 10 | 1271CWY | ROD CLAMP (WITH WATER JACKET) (CONSIST OF 10A, 10B, 10C) | 3 |
| 10A | 1200H30 | HOSE (1/2, X 30, WITH 1/2, MALE X 3/8, MALE CONNECTIONS) | 3 |
| 10B | 1286CWYFP13 | PIPE (3/8” X 13” GALVANIZED AND THREADED ON ONE END) | 3 |
| 10C | 4020-29 | BOLT (5/8-11” GRADE 8 BOLT WITH LOCK NUT AND WASHER) | 12 |
| 11 | 6200G71 | PONY ROD | 3 |
| 12 | SEE PAGE | VALVE | 6 |
| 13 | SEE PAGE | VALVE INSERT | 6 |
| 14 | SEE PAGE | VALVE SPRING | 6 |
| 15 | SEE PAGE | SEAT | 6 |
| SWTM1700 | HYDRAULIC SEAT PULLER KIT COMPLETE (refer to tools section of catalog for details.) | ||
| 4467A | SOUTHWEST HP QUICK-CHANGE VALVE COVER ASSEMBLY: (consist of items no. 16-23) | 6 | |
| 16 | 4467 | THREADED FLANGE | 6 |
| 16A | 4667-1 | ADAPTER RING | 6 |
| 17 | 4567 | SCREW GLAND | 6 |
| 18 | 4667A | PLUG (COMPLETE WITH VALVE GUIDE; SCREWS; AND BUSHING) | 6 |
| 18A | %，，- NPT | STEEL PIPE PLUG (1/4，，NPT FORGED STEEL) | 6 |
| 19 | P128 | HP VALVE COVER PLUG SEAL (ALSO AVAILABLE IN URETHANE – PART# P128U) | 6 |
| 20 | 4760-3R | VALVE GUIDE (complete with bushing #47001) | 6 |
| 21 | 4700I | VALVE GUIDE BUSHING (ALSO AVAILABLE IN URETHANE-PART# 4700IU) | 6 |
| 22 | 4016-98 | VALVE GUIDE SCREW | 12 |
| 23 | 4015-5 | VALVE COVER STUD (WITH SW PART# HHN1375-6 1-3/8”-6” HEAVY HEX NUT) | 72 |
| 24 | 4018-47 | POWER END STUD (WITH SW PART# HHN1125-7 1-1/8”7 HEAVY HEX NUT) | 24 |
| 25 | 4017-48 | LINER BUSHING STUD (WITH SW PART# HHN0750-10 %”-10 HEAVY HEX NUT) | 18 |
| 26 | 80561192 | LINER BUSHING | 3 |
| 27 | 80661192 | LINER CLAMP (WITH %”-10 GRADE 5 BOLT ; LOCK NUT AND WASHER) | 3 |
| FLUID END TYPE | MODEL OF PUMP | SIZE OF PUMP | ||||||
| OEM 5000 PSI | NATIONAL 8-P-80 | 6-1/4” X 8-1/2” |
| ITEM NO. | PART NO. | DESCRIPTION | QTY. REQ’D |
| 28 | 4017-1 | SUCTION MODULE STUD (WITH SW PART# HHN1500>8 1-1/2，，-8 HEAVY HEX NUT) | 18 |
| 29 | 4018-19 | SUCTION MANIFOLD CAP SCREW (with lock washer) | 24 |
| 30 | 8571 | SUCTION MANIFOLD (front or side inlet) | 1 |
| 31 | AJO235 | SUCTION MANIFOLD GASKET | 3 |
| 32 | 8471-52S | SUCTION MODULE (studded only)- | 3 |
| 33 | 8471-53D | DISCHARGE MODULE (studded only) | 3 |
| 34 | 8488-5 | DOWEL PIN | 6 |
| NATIONAL “WEDGE LOCK” VALVE COVER ASSEMBLY: (QTY. REQ’D P/ASSY. CONSISTING OF ITEMS NO. 35-46) | |||
| 35 | 4016-34 | VALVE COVER STUD (WITH SW PART# HHN1375-6 1-3/8”-6 HEAVY HEX NUT) | 12 |
| 36 | 80803092 | VALVE COVER FLANGE (THREADED RING) | 1 |
| 37 | 80703092 | VALVE COVER | 1 |
| 38 | 80871092 | WEDGE ADJUSTING SCREW | 1 |
| 39 | 80061003 | WEDGE ADJUSTING NUT | 1 |
| 40 | 80513092 | WEDGE ADJUSTING WASHER | 1 |
| 41 | 80971092 | LOCKING WEDGE ASSEMBLY (consisting of 6-wedging and 1-spring) | 1 |
| 42 | 80181092 | WEDGE SPRING | 1 |
| 43 | 80471092 | SEAL RETAINER | 1 |
| 44 | AJO250U | VALVE COVER GASKET (u=urethane/r=rubber) | 1 |
| 45 | 80141292 | VALVE GUIDE INSERT | 1 |
| 46 | 80041292 | INSERT HOLDER | 1 |
| 47 | 4018-18 | DISCHARGE CONNECTOR CAP SCREW (with lock washer) | 16 |
| 48 | 4018-27 | DISCHARGE SPACER FLANGE SOCKET HEAD CAP SCREW | 16 |
| 49 | 8367-1 | DISCHARGE CONNECTOR | 2 |
| 50 | 8367-2 | DISCHARGE ADAPTER | 2 |
| 51 | 8367-3 | BACK-UP RING | 4 |
| 52 | DISCHARGE SPACER FLANGE | 2 | |
| 53 | 2967-3 | DISCHARGE SPACER FLANGE SEAL | 2 |
| 54 | 2967-1 | DISCHARGE CONNECTOR / ADAPTER PACKING | 2 |
| 55 | 2967-2 | DISCHARGE CONNECTOR / ADAPTER PACKING | 4 |
| 56 | R39D | RING GASKET | 2 |
| 57 | 4017-45 | DISCHARGE SPACER FLANGE STUD (WITH SW PART# HHN1250-7 1-1/4”-7 HEAVY HEX nut) | 16 |
| 58 | 5000 5BFLANGE | BLIND FLANGE |
OEM STYLE NATIONAL 8-P-80 GUIDE TO ORDERING
PISTONS LINERS LINER SEALS
| SIZE | FAIL-SAFE | DUAL-DURO® | GRAYLOY® | ZIRCONIA | RUBBER | URETHANE | |
| 4″ | 76BFS | 76BDD | 1371G06 | 1371ZIR06 | 2971-06 | 2971-06U | |
| 4 1/4″ | 77BFS | 77BDD | 1371G07 | 2971-07 | 2971-07U | ||
| 4 1/2″ | 78BFS | 78BDD | 1371G08 | 1371ZIR08 | 2971-08 | 2971-08U | |
| 4 3/4″ | 79BFS | 79BDD | 1371G09 | 2971-09 | 2971-09U | ||
| 5″ | 81BFS | 81BDD | 1371G1 | 1371ZIR1 | 2971-1 | 2971-1U | |
| 5 1/4″ | 82BFS | 82BDD | 1371G2 | 2971-2 | 2971-2U | ||
| 5 1/2″ | 83BFS | 83BDD | 1371G3 | 1371ZIR3 | 2971-3 | 2971-3U | |
| 5 3/4″ | 84BFS | 84BDD | 1371G4 | 2971-4 | 2971-4U | ||
| 6″ | 85BFS | 85BDD | 1371G5 | 1371ZIR5 | 2971-5 | 2971-5U | |
| 6 1/4″ | 86BFS | 86BDD | 1371G6 | 2971-6 | 2971-6U | ||
| 6 1/2″ |
VALVES & SEATS OEM NATIONAL 8-P-80
| TYPE | VALVE | INSERT | SPRING | STAINLESS SPRING | SEAT | PULLER HEAD | PULLER HEAD STYLE |
| SOUTHWEST (Full Open) | 773-1B | N/A | SW5710-110L | N/A | 873-1 | SWTM3750 | SPLIT JAW |
| FULL OPEN-ROUGHNECK (Cast N Place Insert Valve) | SWND-6V2 | N/A | SW5710-115 | N/A | SWND-6S4 | SWND-6PH SWTM27SXN | PANCAKE SPLIT JAW |
| FULL OPEN-ROUGHNECK (High Temp) | SWND-6V2HC | NA | SW5710-115 | N/A | SWND-6S4 | SWND-6PH SWTM27SXN | PANCAKE SPLIT JAW |
| FULL OPEN-ROUGHNECK (w/Replaceable Urethane Insert) | SWND-6V1 | SWND-6I | SW5710-115 | N/A | SWND-6S4 | SWND-6PH SWTM27SXN | PANCAKE SPLIT JAW |
| 3 WEB DOUBLE ANGLE O-RING | SWR0500119 | SWR0515845 | SWR0513744 | SWR0514790 | SWR0512436 | SWTM3-7D | |
| 3 WEB (High Temp) | SWR0520586 | SWR0520585 | SWR0513744 | SWR0514790 | SWR0512436 | SWTM3-7D | 3 J HOOK |
| 3 WEB STANDARD PLATE | SWR0505038 | SWR0504890 | SWR0513744 | SWR0515576 | SWR0512436 | SWTM3-7D | |
| 4 WEB | SWU5B-EH | SWUDD-6AB | SW5710-115 | N/A | SW6ADD-B4 | SWTM4-6 | 4 J HOOK |
| 4 WEB (High Temp) | SWU5B-EHHT | SWUDD-6ABHT | SW5710-115 | N/A | SW6ADD-B4 | SWTM4-6 |
TORQUE SPECIFICATIONS FOR OEM STYLE FLUID END ASSEMBLY FOR NATIONAL 8-P-80 5000 P.S.I.
TORQUE TYPE (EXPRESSED IN FOOT-POUNDS)
| PART NUMBER | DESCRIPTION | COPPERCOTE | MOLY GREASE | DRY (NOT RECOMMENDED) | |
| API-4 ESN | PISTON ROD NUT | NO MORE FORCE THAN ONE MAN ON 3′ WRENCH/CHEATER COMBINATION | |||
| 4020-29 | ROD CLAMP BOLT | 150 MAXIMUM | |||
| 4015-5 | VALVE COVER STUD | 876 | 1270 | 1751 | |
| 4018-47 | POWER END STUD | 586 | 850 | 1172 | |
| 4017-48 | LINER BUSHING STUD | 120 | 174 | 240 | |
| 4017-1 | SUCTION MODULE STUD | 1397 | 2025 | 2794 | |
| 4018-19 | SUCTION MANIFOLD CAPSCREW | 215 | 322 | 430 | |
| 4016-34 | VALVE COVER STUD | 876 | 1270 | 1751 | |
| 4018-27 | DISCHARGE SPACER FLANGE SOCKET HEAD CAP SCREW | 908 | 1363 | 1817 | |
| 4017-45 | DISCHARGE SPACER FLANGE STUD | 757 | 1098 | 1514 | |