The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR, hardness_rating: 65.0 SHORE DUROMETER A NOMINAL, outside_diameter: 10.395 INCHES NOMINAL IN, center_hole_diameter: 9.945 INCHES MINIMUM AND 10.005 INCHES MAXIMUM IN, elongation_percentage: 200 MAXIMUM, cross-sectional_height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 5331-01-129-0629, 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
MS9021-377
NSN:5331-01-129-0629 FSC:5331 — O-ring CAGE:96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
material
RUBBER CHLOROPRENE CLASS CR
hardness_rating
65.0 SHORE DUROMETER A NOMINAL
outside_diameter
10.395 INCHES NOMINAL IN
center_hole_diameter
9.945 INCHES MINIMUM AND 10.005 INCHES MAXIMUM IN
elongation_percentage
200 MAXIMUM
cross-sectional_height
0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
NSN
5331-01-129-0629
COMPONENT DIAGRAM
KEY FEATURES
•
CROSS-SECTIONAL HEIGHT: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 10.395 INCHES NOMINAL IN
•
HARDNESS RATING: 65.0 SHORE DUROMETER A NOMINAL
•
ELONGATION PERCENTAGE: 200 MAXIMUM
•
CENTER HOLE DIAMETER: 9.945 INCHES MINIMUM AND 10.005 INCHES MAXIMUM IN
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT
0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
OUTSIDE DIAMETER
10.395 INCHES NOMINAL IN
HARDNESS RATING
65.0 SHORE DUROMETER A NOMINAL
ELONGATION PERCENTAGE
200 MAXIMUM
CENTER HOLE DIAMETER
9.945 INCHES MINIMUM AND 10.005 INCHES MAXIMUM IN
MATERIAL
RUBBER CHLOROPRENE CLASS CR
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
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FREQUENTLY ASKED QUESTIONS
What is MS9021-377?
MS9021-377 is a O-RING.
What parts can replace MS9021-377?
There are 2 known substitutes for MS9021-377: AS3578-377, SAE-AS3578. Substitute compatibility should be verified for your specific system.
What is the NSN for MS9021-377?
MS9021-377 is cataloged in the U.S. Government catalog under NSN 5331-01-129-0629. This indicates validated use in U.S. government and defense supply chains.
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