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25K040028 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

25K040028: O-RING.

The O-RING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-00-587-3808, 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
25K040028
NSN: 5331-00-587-3808
FSC: 5331 — O-ring
CAGE: 5A662 — VME AMERICAS INC CENTRAL PARTS DIV (USA)
SPECIFICATIONS
Part Number25K040028
NSN5331-00-587-3808
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 25K040028 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
6518341Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 25K040028?
25K040028 is a O-RING.
What parts can replace 25K040028?
There is 1 known substitute for 25K040028: 6518341. Substitute compatibility should be verified for your specific system.
What is the NSN for 25K040028?
25K040028 is cataloged in the U.S. Government catalog under NSN 5331-00-587-3808. This indicates validated use in U.S. government and defense supply chains.
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