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874540 — PUMP,ROTARY

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

874540: PUMP,ROTARY.

The PUMP,ROTARY is a the manufacturer industrial component. Key specifications include mounting_type: FLANGE, drive_shaft_type: SPLINED, STRAIGHT EXTERNAL, operation_method: POWERED, discharge_pressure: 000.0 COMPREHENSIVE PROCUREMENT GUIDELINE - VEHICULAR PRODUCTS - REBUILT VEHICULAR PARTS, rotary_pump_design: GEAR, drive_connection_type: RIGID COUPLED. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-254-5550, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
874540
NSN: 4730-00-254-5550
NIINs: 002545550, 014073665
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 77237 — DANA OFF HIGHWAY PRODUCTS, LLC (USA)
SPECIFICATIONS
mounting_typeFLANGE
drive_shaft_typeSPLINED, STRAIGHT EXTERNAL
operation_methodPOWERED
discharge_pressure000.0 COMPREHENSIVE PROCUREMENT GUIDELINE - VEHICULAR PRODUCTS - REBUILT VEHICULAR PARTS
rotary_pump_designGEAR
drive_connection_typeRIGID COUPLED
intake_connection_typeRECTANGULAR FLANGE
supplementary_featuresSPECIAL "S1" OPTION GAUGE PORT PROVIDED
end_item_identificationKOMATSY DRESSER CO., RUBBER TIRED LOADERS, MODELS 510C, 515C AND 515CH; HYDRAULIC RESERVOIR MAIN PUMP
pump_rotation_directionCOUNTERCLOCKWISE
media_for_which_designedHYDROCARBON FUELS AND OILS AND LIQUID
discharge_connection_typeRECTANGULAR FLANGE
NSN4730-00-254-5550
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 874540 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 1
UMP24Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 874540?
874540 is a PUMP,ROTARY.
What parts can replace 874540?
There is 1 known substitute for 874540: UMP24. Substitute compatibility should be verified for your specific system.
What is the NSN for 874540?
874540 is cataloged in the U.S. Government catalog under NSN 4730-00-254-5550. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.