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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 5331-01-376-6820 P/N TS-240 · 240 · T-10-1772-1ITEM7 · T-10-1772-1LEG7 · +4 more
  2. O-RING NSN 5331-01-371-7816 P/N 1269-40 · A-336 MG · AS568-336 · OR2-336-9251 · +4 more
  3. O-RING NSN 5331-01-368-1686 P/N 600-250 · 74B830158-2001 · ST7M258H250 · 74B830158-2001 · +4 more
  4. O-RING NSN 5331-01-365-1466 P/N M83485/1-202 · AMC-R-83485 · MIL-R-83485 · M83485/1-202 · +4 more
  5. O-RING NSN 5331-01-360-8999 P/N MIL-DTL-25988/4 · MIL-R-25988/4 · M25988/4-123 · 2-123L806-80 · +4 more
  6. O-RING NSN 5331-01-358-3255 P/N MS9967-212 · 5330PL0756866 · MS9967-212 · MS9967-212 · +4 more
  7. O-RING NSN 5331-01-353-9544 P/N 166-7399 · 2HG157 · 2HG157 · MS28778-166 · +4 more
  8. O-RING NSN 5331-01-350-5349 P/N 2N-0475 · 7HB465 · 7HB465 · 10076351 · +4 more
  9. O-RING NSN 5331-01-350-4372 P/N AM1340 · AM1340000P006 · US71686 ITEM 8-6 · 71686-8-6 · +4 more
  10. O-RING NSN 5331-01-350-3177 P/N AS3209-133 CP · MIL-R-83248/1-133 · MIL-R-83248C · MIL-R-83248/1A · +4 more
  11. O-RING NSN 5331-01-350-3173 P/N MIL-R-83248/1-006 · MIL-R-83248 · M83248/1-006CP · 1000-0060-6CP · +4 more
  12. O-RING NSN 5331-01-348-8331 P/N 1000016436 · 52-49529-00013 · 52-49529-00 · 2HD735 · +4 more
  13. O-RING NSN 5331-01-340-6963 P/N M83485/1-222 · AMC-R-83485 · M83485/1-222 · MIL-R-83485 · +4 more
  14. O-RING NSN 5331-01-336-5358 P/N M83461/1-161 · M83461/1-161 · AMS-P-83461 · MIL-P-83461 · +4 more
  15. O-RING NSN 5331-01-335-0174 P/N M83248/1-118CP · MIL-R-83248/1-118 · V3D10214 ITEM 20 · V3D10077 ITEM 14 · +4 more
  16. O-RING NSN 5331-01-332-9322 P/N 501-6603017PC26 · 501-6603017PC26 · MS28775-276 · MIL-P-25732 · +4 more
  17. O-RING NSN 5331-01-330-3176 P/N S9412-027 · S9412-027 · MIL-DTL-25988/2 · M25988/2-027 · +4 more
  18. O-RING NSN 5331-01-326-8017 P/N 24341-000224 · 5331PL0807267 · 10127174 · 24341-000224 · +4 more
  19. O-RING NSN 5331-01-324-8831 P/N 114250-00341 · CV137598 · 114250-11341 · 114250-11341 · +4 more
  20. O-RING NSN 5331-01-324-5268 P/N PL2850-0030 FIND 59 · AS3209-126CP · M83248/1-126 · PL2850-0030 FIND 59 · +4 more
  21. O-RING NSN 5331-01-323-7102 P/N AS3581-114CP · C-8177 ITEM 16 · PLC-10866 ITEM 13CP · M83248/2-114CP · +4 more
  22. O-RING NSN 5331-01-322-1149 P/N AMC-R-83485 · M83485/1-046 · M83485/1-46 · MIL-R-83485 · +4 more
  23. O-RING NSN 5331-01-320-9568 P/N 04811-00100 · 04811-00100 · 5331PL0648120 · 04811-00100 · +4 more
  24. O-RING NSN 5331-01-320-8112 P/N MS9967-221 · 5330PL0673227 · 5331PL0658532 · 5331PL2318259 · +4 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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