AS3551-018 — O-RING

✓ Government record, cited

— · ORING SEAL

PRODUCT OVERVIEW

AS3551-018: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, outside_diameter: 0.879 INCHES NOMINAL IN, center_hole_diameter: 0.734 INCHES MINIMUM AND 0.744 INCHES MAXIMUM IN, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-973-8621, 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

AS3551-018

NSN: 5331-00-973-8621
FSC: 5331 — O-ring
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)

SPECIFICATIONS

material	RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
hardness_rating	70.0 SHORE DUROMETER A NOMINAL
outside_diameter	0.879 INCHES NOMINAL IN
center_hole_diameter	0.734 INCHES MINIMUM AND 0.744 INCHES MAXIMUM IN
cross-sectional_height	0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
NSN	5331-00-973-8621

COMPONENT DIAGRAM

KEY FEATURES

•

CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN

•

OUTSIDE DIAMETER: 0.879 INCHES NOMINAL IN

•

HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL

•

CENTER HOLE DIAMETER: 0.734 INCHES MINIMUM AND 0.744 INCHES MAXIMUM IN

•

MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR

TECHNICAL CHARACTERISTICS

CROSS-SECTIONAL HEIGHT	0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
OUTSIDE DIAMETER	0.879 INCHES NOMINAL IN
HARDNESS RATING	70.0 SHORE DUROMETER A NOMINAL
CENTER HOLE DIAMETER	0.734 INCHES MINIMUM AND 0.744 INCHES MAXIMUM IN
MATERIAL	RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR

SUBSTITUTES & CROSS-REFERENCES 3

SAE-AS3551Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

1557052-18Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

MS9241-018Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Shelf-life managedAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is AS3551-018?

AS3551-018 is a O-RING.

What parts can replace AS3551-018?

There are 3 known substitutes for AS3551-018: SAE-AS3551, 1557052-18, MS9241-018. Substitute compatibility should be verified for your specific system.

What is the NSN for AS3551-018?

AS3551-018 is cataloged in the U.S. Government catalog under NSN 5331-00-973-8621. This indicates validated use in U.S. government and defense supply chains.

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