Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW
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: 0.495 INCHES NOMINAL IN, center_hole_diameter: 0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN, elongation_percentage: 250 MAXIMUM, cross-sectional_height: 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-035-3367, 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
MIL-G-21569B CL 1
NSN:5331-01-035-3367 FSC:5331 — O-RING CAGE:81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES 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
0.495 INCHES NOMINAL IN
center_hole_diameter
0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN
elongation_percentage
250 MAXIMUM
cross-sectional_height
0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
NSN
5331-01-035-3367
COMPONENT DIAGRAM
KEY FEATURES
•
OUTSIDE DIAMETER: 0.495 INCHES NOMINAL IN
•
HARDNESS RATING: 65.0 SHORE DUROMETER A NOMINAL
•
CROSS-SECTIONAL HEIGHT: 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
CENTER HOLE DIAMETER: 0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN
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FREQUENTLY ASKED QUESTIONS
What is MIL-G-21569B CL 1?
MIL-G-21569B CL 1 is a O-RING.
What parts can replace MIL-G-21569B CL 1?
There are 25 known substitutes for MIL-G-21569B CL 1: ABS3303, 205-160-904, M83248/2-904 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-G-21569B CL 1?
MIL-G-21569B CL 1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-035-3367. This indicates validated use in U.S. government and defense supply chains.
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