MS9021-439 — O-RING

✓ Government record, cited

— · ORING SEAL

PRODUCT OVERVIEW

MS9021-439: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, hardness_rating: 60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM, outside_diameter: 7.025 INCHES NOMINAL IN, center_hole_diameter: 6.452 INCHES MINIMUM AND 6.498 INCHES MAXIMUM IN, cross-sectional_height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN, material_document_and_classification: AMS-7271 ASSN STD SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-298-6188, 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

MS9021-439

NSN: 5331-00-298-6188
NIINs: 002986188, 009557589
FSC: 5331 — O-ring
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

SPECIFICATIONS

material	RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
hardness_rating	60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM
outside_diameter	7.025 INCHES NOMINAL IN
center_hole_diameter	6.452 INCHES MINIMUM AND 6.498 INCHES MAXIMUM IN
cross-sectional_height	0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
material_document_and_classification	AMS-7271 ASSN STD SINGLE MATERIAL RESPONSE
NSN	5331-00-298-6188

COMPONENT DIAGRAM

KEY FEATURES

•

CROSS-SECTIONAL HEIGHT: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN

•

OUTSIDE DIAMETER: 6.973 INCHES MINIMUM AND 7.077 INCHES MAXIMUM IN

•

HARDNESS RATING: 60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM

•

CENTER HOLE DIAMETER: 6.452 INCHES MINIMUM AND 6.498 INCHES MAXIMUM IN

•

MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR

TECHNICAL CHARACTERISTICS

CROSS-SECTIONAL HEIGHT	0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
OUTSIDE DIAMETER	6.973 INCHES MINIMUM AND 7.077 INCHES MAXIMUM IN
HARDNESS RATING	60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM
CENTER HOLE DIAMETER	6.452 INCHES MINIMUM AND 6.498 INCHES MAXIMUM IN
MATERIAL	RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR

SUBSTITUTES & CROSS-REFERENCES 8

1793-439Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

2-439 N602-70Reference document

Same NSN cross-reference

Reference document — Secondary reference

PX1775-439Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

PRP568-439-60Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

AS29513-439Reference document

Same NSN cross-reference

Reference document — Secondary reference

SAE-AS29513Reference document

Same NSN cross-reference

Reference document — Design control — primary 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 MS9021-439?

MS9021-439 is a O-RING.

What parts can replace MS9021-439?

There are 8 known substitutes for MS9021-439: 1793-439, 2-439 N602-70, PX1775-439 and 5 more. Substitute compatibility should be verified for your specific system.

What is the NSN for MS9021-439?

MS9021-439 is cataloged in the U.S. Government catalog under NSN 5331-00-298-6188. This indicates validated use in U.S. government and defense supply chains.

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MS9021-439 — O-RING

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