The O-RING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-548-8963, 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
04521-021
NSN:5331-01-548-8963 FSC:5331 — O-ring CAGE:21439 — CURTISS-WRIGHT FLOW CONTROL SERVICE, LLC DBA ENGINEERED ARRESTING SYSTEMS - ESCO DIV CW FLOW CONTROL SVC LLC DBA (USA)
SPECIFICATIONS
Part Number
04521-021
NSN
5331-01-548-8963
COMPONENT DIAGRAM
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 04521-021?
04521-021 is a O-RING.
What is the NSN for 04521-021?
04521-021 is cataloged in the U.S. Government catalog under NSN 5331-01-548-8963. This indicates validated use in U.S. government and defense supply chains.
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