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82749 ITEM 7 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

82749 ITEM 7: O-RING.

The O-RING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-407-2320, 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
82749 ITEM 7
NSN: 5331-01-407-2320
FSC: 5331 — O-ring
CAGE: 77842 — EATON CORPORATION DBA EATON INOAC DIV EATON (USA)
SPECIFICATIONS
Part Number82749 ITEM 7
NSN5331-01-407-2320
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 82749 ITEM 7 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES 1
2-347E540-80Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 82749 ITEM 7?
82749 ITEM 7 is a O-RING.
What parts can replace 82749 ITEM 7?
There is 1 known substitute for 82749 ITEM 7: 2-347E540-80. Substitute compatibility should be verified for your specific system.
What is the NSN for 82749 ITEM 7?
82749 ITEM 7 is cataloged in the U.S. Government catalog under NSN 5331-01-407-2320. This indicates validated use in U.S. government and defense supply chains.
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