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1166825 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1166825: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE NITRILE, outside_diameter: 0.7500 INCHES NOMINAL IN, center_hole_diameter: 0.5625 INCHES NOMINAL IN, cross-sectional_height: 0.094 INCHES NOMINAL IN, end_item_identification: 2541015610937, TEMPERATURE -40(DEG)F TO 250 (DEG)F. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-603-1133, 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
1166825
NSN: 5331-01-603-1133
FSC: 5331 — O-ring
CAGE: 0Y3H3 — FASTENAL COMPANY DBA FASTENAL CO (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE NITRILE
outside_diameter0.7500 INCHES NOMINAL IN
center_hole_diameter0.5625 INCHES NOMINAL IN
cross-sectional_height0.094 INCHES NOMINAL IN
end_item_identification2541015610937, TEMPERATURE -40(DEG)F TO 250 (DEG)F
NSN5331-01-603-1133
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1166825 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
•
CROSS-SECTIONAL HEIGHT: 0.094 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 0.7500 INCHES NOMINAL IN
•
COLOR: BLACK
•
CENTER HOLE DIAMETER: 0.5625 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE NITRILE
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.094 INCHES NOMINAL IN
OUTSIDE DIAMETER0.7500 INCHES NOMINAL IN
COLORBLACK
CENTER HOLE DIAMETER0.5625 INCHES NOMINAL IN
END ITEM IDENTIFICATION2541015610937, TEMPERATURE -40(DEG)F TO 250 (DEG)F
MATERIALRUBBER BUTADIENE NITRILE
SUBSTITUTES & CROSS-REFERENCES 1
AC2211Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1166825?
1166825 is a O-RING.
What parts can replace 1166825?
There is 1 known substitute for 1166825: AC2211. Substitute compatibility should be verified for your specific system.
What is the NSN for 1166825?
1166825 is cataloged in the U.S. Government catalog under NSN 5331-01-603-1133. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.