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D0551418 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

D0551418: O-RING.

The O-RING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-182-8394, 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
D0551418
NSN: 5331-01-182-8394
FSC: 5331 — O-ring
CAGE: A0461 — CALZONI SRL (ITA)
SPECIFICATIONS
Part NumberD0551418
NSN5331-01-182-8394
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: D0551418 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 8
2-270N674-70Reference document
Same NSN cross-reference
Reference document — Secondary reference
91573398Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
WG115270Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MIL-G-21569B CL 1Reference document
Same NSN cross-reference
Reference document — Identification reference
AS568B-270Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
M83461/1-270Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is D0551418?
D0551418 is a O-RING.
What parts can replace D0551418?
There are 8 known substitutes for D0551418: 2-270N674-70, 91573398, WG115270 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D0551418?
D0551418 is cataloged in the U.S. Government catalog under NSN 5331-01-182-8394. 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.