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. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-190-1864, 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
40405-1 PC 21
NSN:5331-01-190-1864 FSC:5331 — O-RING CAGE:55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
material
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
NSN
5331-01-190-1864
COMPONENT DIAGRAM
KEY FEATURES
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MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
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FREQUENTLY ASKED QUESTIONS
What is 40405-1 PC 21?
40405-1 PC 21 is a O-RING.
What parts can replace 40405-1 PC 21?
There are 15 known substitutes for 40405-1 PC 21: 572-01, NDC63323-0693-10, MUCOMYST-10 and 12 more. Substitute compatibility should be verified for your specific system.
Is 40405-1 PC 21 still available?
40405-1 PC 21 is currently cancelled.
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