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Technical Data Sheet
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3719400 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3719400: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5330-01-320-5879, 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
3719400
NSN: 5330-01-320-5879
FSC: 5330 — Packing and Gasket Materials
CAGE: 71871 — ALFA LAVAL INC (USA)
SPECIFICATIONS
Part Number3719400
NSN5330-01-320-5879
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3719400 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
SUBSTITUTES & CROSS-REFERENCES 1
37194Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3719400?
3719400 is a RETAINER,PACKING.
What parts can replace 3719400?
There is 1 known substitute for 3719400: 37194. Substitute compatibility should be verified for your specific system.
What is the NSN for 3719400?
3719400 is cataloged in the U.S. Government catalog under NSN 5330-01-320-5879. This indicates validated use in U.S. government and defense supply chains.
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