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Home/Military Standard parts/Seals & Fittings/FSC 5331
Category // FSC 5331 · 53,078 items

O-Ring

Round-section sealing rings used in grooves to seal fluid and gas connections; every item filed here is an O-ring.

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53,078 items

  1. O-RING NSN 5331-00-964-0058 P/N S8057K185 · S8057K185 · 22-024 47-071 · MS29561-024 · +10 more
  2. O-RING NSN 5331-00-935-9203 P/N S9515-AL-MMA-010,7-41 ITEM4 · S9515-AL-MMA-010,7-60 ITEM11 · S9515-AL-MMA-010,7-61 ITEM8 · S9515-AL-MMA-010,7-11 ITEM 9 · +10 more
  3. O-RING NSN 5331-00-935-9150 P/N 034-737-70 · 102A10001-11 · DS-933768 · 3638-034 · +10 more
  4. O-RING NSN 5331-00-932-1715 P/N 138-11646 · PRP138-11646 · PRP568-138-1133-60 · B63115-138 · +10 more
  5. O-RING NSN 5331-00-892-4183 P/N 287-1166P147 · 287-1166P147 · 287-1166P147 · PRP568-260-4024-65 · +10 more
  6. O-RING NSN 5331-00-869-3162 P/N 23B14053-11 · NAS1611-011A · NAS1611-011 · NAS1613 · +10 more
  7. O-RING NSN 5331-00-847-6604 P/N 905-17107 · 35-77-545 · S9028D905 · S8316AF5 · +10 more
  8. O-RING NSN 5331-00-842-0567 P/N 69890-34 · PRP568-229-4024-65 · AS3578-229 · MS9021-229 · +10 more
  9. O-RING NSN 5331-00-835-7693 P/N PRP568-146-4067-70 · MS28775-146 · 5331PL0976135 · MS28775-146 · +10 more
  10. O-RING NSN 5331-00-828-8059 P/N 906-11628 · 1-300-371-01 · 1-300-371-02 · 3-6L610-8 · +10 more
  11. O-RING NSN 5331-00-819-3860 P/N 192336 · 90480PC18 · ARP112PC10V70-234 · 593-516-1862878PC1 · +10 more
  12. O-RING NSN 5331-00-817-7080 P/N PRP914-34142-70 · 700560 · D38796PC1 1-4 · PRP568-134DC675 · +10 more
  13. O-RING NSN 5331-00-806-4171 P/N PRP909-16142-70 · 497250-314 · S8171K16 · 5331PL0729444 · +10 more
  14. O-RING NSN 5331-00-804-2745 P/N 69890-130 · PRP568-023-4024-65 · AS3578-023 · 416000-23 · +10 more
  15. O-RING NSN 5331-00-800-6353 P/N MS29561-138 · AS29561-138 · PRP914-38142-70 · MS29561-138 · +10 more
  16. O-RING NSN 5331-00-800-5180 P/N 102A10001-08 · MS29561-015 · 38 76504 2015 2 · MS29561-015 · +10 more
  17. O-RING NSN 5331-00-771-3357 P/N 10141-2PC10 · 2621-906-19 PIECE 21 · 58-012-15 · 2621-906-19 PIECE 21 · +10 more
  18. O-RING NSN 5331-01-698-9889 P/N 551-6685221 PC NO.7 · 551-6685222 PC NO.14 · AS3581-235 · M83248/2-235 · +10 more
  19. O-RING NSN 5331-01-550-4825 P/N DF330613 FIND NO 87 · 7383858-DF330613-97-87 · 7550478-DF330613-087 · 801-6408529 FIND NO 87 · +10 more
  20. O-RING NSN 5331-01-550-3391 P/N 7550478-264277305-38 · 845-4687579 ITEM 38 · M83248/2-214 · 2642-773-05 ITEM 38 · +10 more
  21. O-RING NSN 5331-01-550-3283 P/N 7383858-054235-12 · 7550478-054235-12 · 054235BP S/N 12 · 054235-12 · +10 more
  22. O-RING NSN 5331-01-550-3268 P/N 7550478-054235-7 · 7383858-054235-7 · H547-0001-054235-7 · 820310 · +10 more
  23. O-RING NSN 5331-01-549-2403 P/N 592-7385382 PN F244 · 7550478-G7656251-0F244 · M83248/1-229 · G765-6251 PN F244 · +10 more
  24. O-RING NSN 5331-01-548-5578 P/N 7383858-PLC-12385-7 · M83248/2-227 · 7550478-PLC-12385-7 · G547-0002-PLC-12385-7 · +10 more

Ranked by how many manufacturer cross-references are on file. Every item is quote-only — the federal record carries no price and no stock, and Atlas publishes neither. Browsing stops at page 500 of this class — past that, search by number. Send a whole list →

Questions about O-Ring

What does federal supply class 5331 cover?

Federal supply class 5331 covers O-rings, the round-section sealing rings used in grooves to seal fluid and gas connections. Every item filed here is an O-ring.

How is a part in federal supply class 5331 identified?

Because every item in the class has the same item name, the NSN is what tells one O-ring from another. Each NSN record carries the characteristics on file for that exact ring and the part numbers cross-referenced to it, so a buyer can work from an MS or AS number, a manufacturer number, or a drawing callout. Each item in the class has its own National Stock Number (NSN) record, listed above.

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