The GASKET is a the manufacturer industrial component. Key specifications include material: COPPER OVERALL, special_features: SIZE 1/4 INCH, BOX 100, UNV. NUMBER B2-4 IN, part_name_assigned_by_controlling_agency: COPPER FLARE GASKET.
This part is cataloged in the U.S. Government catalog under NSN 5330-01-689-9935, 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
21J12139
NSN:5330-01-689-9935 FSC:5330 — Packing and Gasket Materials CAGE:K0150 — ERNEST WEST & BEYNON LTD (GBR)
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FREQUENTLY ASKED QUESTIONS
What is 21J12139?
21J12139 is a GASKET.
What parts can replace 21J12139?
There is 1 known substitute for 21J12139: 40090930. Substitute compatibility should be verified for your specific system.
What is the NSN for 21J12139?
21J12139 is cataloged in the U.S. Government catalog under NSN 5330-01-689-9935. This indicates validated use in U.S. government and defense supply chains.
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