o-rings › o-rings
NAS1304-21
Ring O
Description
AS3209-277 O-Ring
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for NAS1304-21 — functionally equivalent.
- NAS6604-21 Listed alternate 28.00-28 · 0.073 in · Undercut hexagon · Steel
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Catalog data updated 2026-07-05. Report a data error