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Technical Data Sheet
174D ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

PUMP,ENGINE PRIMING,HAND DRIVEN. Key specifications include end_item_identification: GENERAL MOTORS CORP,DETROIT DIESEL ENGINE SERIES 71. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-311-9490, 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
174D
NSN: 5340-00-311-9490
FSC: 5340
CAGE: 87737 — TAYLOR LOCK CO (USA)
SPECIFICATIONS
end_item_identificationGENERAL MOTORS CORP,DETROIT DIESEL ENGINE SERIES 71
general_characteristics_item_descriptionBRASS,5.625 IN. O/A H,1.438 IN. O/A LG,1.250 IN. O/A W,INLET AND OUTLET PORTS 0.125 IN. NPT,W/MANUAL OPERATING LEVER,OD OF TOP KNOB 1.125 IN. IN
NSN5340-00-311-9490
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 174D MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
174DInterchangeable
interchangeable cross-reference
interchangeable
WA5039Interchangeable
interchangeable cross-reference
interchangeable
00323-0001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 174D?
174D is a PUMP,ENGINE PRIMING,HAND DRIVEN.
What parts can replace 174D?
There are 3 known substitutes for 174D: 174D, WA5039, 00323-0001. Substitute compatibility should be verified for your specific system.
What is the NSN for 174D?
174D is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-311-9490. This indicates validated use in U.S. government and defense supply chains.
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