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: 8.693 INCHES NOMINAL IN, center_hole_diameter: 8.457 INCHES MINIMUM AND 8.517 INCHES MAXIMUM IN, elongation_percentage: 200 MAXIMUM, cross-sectional_height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 5331-01-088-2843, 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
MS9021-173
NSN:5331-01-088-2843 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
8.693 INCHES NOMINAL IN
center_hole_diameter
8.457 INCHES MINIMUM AND 8.517 INCHES MAXIMUM IN
elongation_percentage
200 MAXIMUM
cross-sectional_height
0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
material_document_and_classification
AMS-7271 ASSN STD SINGLE MATERIAL RESPONSE
NSN
5331-01-088-2843
COMPONENT DIAGRAM
KEY FEATURES
•
CROSS-SECTIONAL HEIGHT: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 8.693 INCHES NOMINAL IN
•
HARDNESS RATING: 60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS-7271 ASSN STD SINGLE MATERIAL RESPONSE
•
ELONGATION PERCENTAGE: 200 MAXIMUM
•
CENTER HOLE DIAMETER: 8.457 INCHES MINIMUM AND 8.517 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT
0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
OUTSIDE DIAMETER
8.693 INCHES NOMINAL IN
HARDNESS RATING
60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION
AMS-7271 ASSN STD SINGLE MATERIAL RESPONSE
ELONGATION PERCENTAGE
200 MAXIMUM
CENTER HOLE DIAMETER
8.457 INCHES MINIMUM AND 8.517 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 MS9021-173?
MS9021-173 is a O-RING.
What parts can replace MS9021-173?
There are 2 known substitutes for MS9021-173: SAE-AS3578, AS3578-173. Substitute compatibility should be verified for your specific system.
What is the NSN for MS9021-173?
MS9021-173 is cataloged in the U.S. Government catalog under NSN 5331-01-088-2843. This indicates validated use in U.S. government and defense supply chains.
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