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221266 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

221266: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE NITRILE, center_hole_diameter: 2.710 INCHES MINIMUM AND 2.758 INCHES MAXIMUM IN, cross-sectional_height: 0.152 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN, end_item_identification: MALE ADAPTER, part_name_assigned_by_controlling_agency: O-RING. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-220-6149, 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
221266
NSN: 5331-01-220-6149
NIINs: 012206149, 015450599
FSC: 5331 — O-ring
CAGE: 77873 — ROCKFORD POWERTRAIN INC DIV POWERTRAIN ROCKFORD, INC. (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE NITRILE
center_hole_diameter2.710 INCHES MINIMUM AND 2.758 INCHES MAXIMUM IN
cross-sectional_height0.152 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
end_item_identificationMALE ADAPTER
part_name_assigned_by_controlling_agencyO-RING
NSN5331-01-220-6149
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 221266 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
•
CENTER HOLE DIAMETER: 3.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CENTER HOLE DIAMETER3.625 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
2AT286Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2-762-596-21266Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 221266?
221266 is a O-RING.
What parts can replace 221266?
There are 2 known substitutes for 221266: 2AT286, 2-762-596-21266. Substitute compatibility should be verified for your specific system.
What is the NSN for 221266?
221266 is cataloged in the U.S. Government catalog under NSN 5331-01-220-6149. This indicates validated use in U.S. government and defense supply chains.
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