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2574737 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2574737: O-RING.

The O-RING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-00-455-6406, 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
2574737
NSN: 5331-00-455-6406
FSC: 5331 — O-ring
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
Part Number2574737
NSN5331-00-455-6406
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2574737 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 5
2-032 N219-7Reference document
Same NSN cross-reference
Reference document — Secondary reference
2243009-8Reference document
Same NSN cross-reference
Reference document — Secondary reference
2443009-8Reference document
Same NSN cross-reference
Reference document — Secondary reference
N0674 0186-4070ITARReference document
Same NSN cross-reference
Reference document — Secondary reference
47.34X1.78 20A7Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2574737?
2574737 is a O-RING.
What parts can replace 2574737?
There are 5 known substitutes for 2574737: 2-032 N219-7, 2243009-8, 2443009-8 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2574737?
2574737 is cataloged in the U.S. Government catalog under NSN 5331-00-455-6406. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.