The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, hardness_rating: 65.0 SHORE DUROMETER A NOMINAL, outside_diameter: 4.351 INCHES MINIMUM AND 4.423 INCHES MAXIMUM IN, center_hole_diameter: 4.094 INCHES MINIMUM AND 4.124 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 5331-00-080-0706, 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
MS9021-243
NSN:5331-00-080-0706 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
65.0 SHORE DUROMETER A NOMINAL
outside_diameter
4.351 INCHES MINIMUM AND 4.423 INCHES MAXIMUM IN
center_hole_diameter
4.094 INCHES MINIMUM AND 4.124 INCHES MAXIMUM IN
cross-sectional_height
0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN
5331-00-080-0706
COMPONENT DIAGRAM
KEY FEATURES
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 4.351 INCHES MINIMUM AND 4.423 INCHES MAXIMUM IN
•
HARDNESS RATING: 65.0 SHORE DUROMETER A NOMINAL
•
CENTER HOLE DIAMETER: 4.094 INCHES MINIMUM AND 4.124 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT
0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
OUTSIDE DIAMETER
4.351 INCHES MINIMUM AND 4.423 INCHES MAXIMUM IN
HARDNESS RATING
65.0 SHORE DUROMETER A NOMINAL
CENTER HOLE DIAMETER
4.094 INCHES MINIMUM AND 4.124 INCHES MAXIMUM IN
MATERIAL
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
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 MS9021-243?
MS9021-243 is a O-RING.
What parts can replace MS9021-243?
There are 4 known substitutes for MS9021-243: PRP568-243-4024-65, 2-243 N506-65, SAE-AS3578 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS9021-243?
MS9021-243 is cataloged in the U.S. Government catalog under NSN 5331-00-080-0706. This indicates validated use in U.S. government and defense supply chains.
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