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Technical Data Sheet
251-381 ✓ 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

The PUMP,COOLING SYSTEM,ENGINE is a the manufacturer thermal management component critical for maintaining optimal operating temperatures in enterprise hardware. Key specifications include usage_design: VEHICULAR, end_item_identification: 1975 FORD TRUCK, media_for_which_designed: WATER, FRESH. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-134-4268, 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
251-381
NSN: 5340-00-134-4268
FSC: 5340
CAGE: 16004 — DAVEY COMPRESSOR CO DIV OF KECO INDUSTRIES INC (USA)
SPECIFICATIONS
usage_designVEHICULAR
end_item_identification1975 FORD TRUCK
media_for_which_designedWATER, FRESH
NSN5340-00-134-4268
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 251-381 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
TYPICAL APPLICATIONS
  • Server thermal management and cooling
  • Hot-swap fan replacement in production environments
  • Redundant cooling for high-availability systems
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
PC-452Interchangeable
interchangeable cross-reference
interchangeable
251-381Interchangeable
interchangeable cross-reference
interchangeable
D2TZ-8501-AInterchangeable
interchangeable cross-reference
interchangeable
K251381Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 251-381?
251-381 is a PUMP,COOLING SYSTEM,ENGINE.
What parts can replace 251-381?
There are 4 known substitutes for 251-381: PC-452, 251-381, D2TZ-8501-A and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 251-381?
251-381 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-134-4268. This indicates validated use in U.S. government and defense supply chains.
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