The 4437-4 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-134-0613, 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
4437-4
NSN:5331-01-134-0613 NIINs:011340613, 016052126 FSC:5331 — O-ring CAGE:77254 — PHILADELPHIA VALVE CO (USA)
SPECIFICATIONS
Part Number
4437-4
NSN
5331-01-134-0613
COMPONENT DIAGRAM
SUBSTITUTES & CROSS-REFERENCES
No substitute or cross-reference records for this part.
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4437-4?
4437-4 is a 4437-4.
What is the NSN for 4437-4?
4437-4 is cataloged in the U.S. Government catalog under NSN 5331-01-134-0613. This indicates validated use in U.S. government and defense supply chains.
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