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3-908E-540-8 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3-908E-540-8: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER ETHYLENE-PROPYLENE CLASS EPM, temp_rating: -70.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF, hardness_rating: 80.0 SHORE DUROMETER A NOMINAL, outside_diameter: 0.803 INCHES MINIMUM AND 0.833 INCHES MAXIMUM IN, center_hole_diameter: 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN, cross-sectional_height: 0.085 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-231-1667, 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
3-908E-540-8
NSN: 5331-00-231-1667
FSC: 5331 — O-ring
CAGE: 01534 — RAYTHEON COMPANY DBA RAYTHEON CO (USA)
SPECIFICATIONS
materialRUBBER ETHYLENE-PROPYLENE CLASS EPM
temp_rating-70.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
hardness_rating80.0 SHORE DUROMETER A NOMINAL
outside_diameter0.803 INCHES MINIMUM AND 0.833 INCHES MAXIMUM IN
center_hole_diameter0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN
cross-sectional_height0.085 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
NSN5331-00-231-1667
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3-908E-540-8 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
KEY FEATURES
•
TEMP RATING: -70.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL HEIGHT: 0.085 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 0.803 INCHES MINIMUM AND 0.833 INCHES MAXIMUM IN
•
HARDNESS RATING: 80.0 SHORE DUROMETER A NOMINAL
•
CENTER HOLE DIAMETER: 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN
•
MATERIAL: RUBBER ETHYLENE-PROPYLENE CLASS EPM
TECHNICAL CHARACTERISTICS
TEMP RATING-70.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
CROSS-SECTIONAL HEIGHT0.085 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.803 INCHES MINIMUM AND 0.833 INCHES MAXIMUM IN
HARDNESS RATING80.0 SHORE DUROMETER A NOMINAL
CENTER HOLE DIAMETER0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN
MATERIALRUBBER ETHYLENE-PROPYLENE CLASS EPM
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 6
B82212-4Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
A6689.908.222Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
1889622-0908Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
E0540 3-908Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
3-908E540-80Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
ARP568-908E540- 8Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 3-908E-540-8?
3-908E-540-8 is a O-RING.
What parts can replace 3-908E-540-8?
There are 6 known substitutes for 3-908E-540-8: B82212-4, A6689.908.222, 1889622-0908 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3-908E-540-8?
3-908E-540-8 is cataloged in the U.S. Government catalog under NSN 5331-00-231-1667. This indicates validated use in U.S. government and defense supply chains.
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