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, temp_rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF, hardness_rating: 72.0 SHORE DUROMETER A MINIMUM AND 78.0 SHORE DUROMETER A MAXIMUM, peripheral_diameter: 6.775 INCHES NOMINAL IN, center_hole_diameter: 6.185 INCHES MINIMUM AND 6.265 INCHES MAXIMUM IN, cross-sectional_height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-585-3646, 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
MS28775-438
NSN:5331-00-585-3646 FSC:5331 — O-RING CAGE:0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
material
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
temp_rating
-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
hardness_rating
72.0 SHORE DUROMETER A MINIMUM AND 78.0 SHORE DUROMETER A MAXIMUM
peripheral_diameter
6.775 INCHES NOMINAL IN
center_hole_diameter
6.185 INCHES MINIMUM AND 6.265 INCHES MAXIMUM IN
cross-sectional_height
0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
NSN
5331-00-585-3646
COMPONENT DIAGRAM
KEY FEATURES
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
CENTER HOLE DIAMETER: 6.202 INCHES MINIMUM AND 6.248 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 6.775 INCHES NOMINAL IN
•
TEMP RATING: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
•
ELONGATION PERCENTAGE: 160 MAXIMUM
•
CROSS-SECTIONAL HEIGHT: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
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FREQUENTLY ASKED QUESTIONS
What is MS28775-438?
MS28775-438 is a O-RING.
What parts can replace MS28775-438?
There are 10 known substitutes for MS28775-438: S7-65, ZB287-1004P65, AN6227B65 and 7 more. Substitute compatibility should be verified for your specific system.
Is MS28775-438 still available?
MS28775-438 is currently cancelled.
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