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7866-339 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7866-339: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, outside_diameter: 3.611 INCHES MINIMUM AND 3.679 INCHES MAXIMUM IN, center_hole_diameter: 3.210 INCHES MINIMUM AND 3.240 INCHES MAXIMUM IN, cross-sectional_height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN, end_item_identification: ARMORED MULTI-PURPOSE VEHICLE (AMPV). This part is cataloged in the U.S.

Government catalog under NSN 5331-00-251-9371, 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
7866-339
NSN: 5331-00-251-9371
FSC: 5331 — O-ring
CAGE: 25184 — PARKER HANNIFIN CORPORATION DIV O-RING DIVISION (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
outside_diameter3.611 INCHES MINIMUM AND 3.679 INCHES MAXIMUM IN
center_hole_diameter3.210 INCHES MINIMUM AND 3.240 INCHES MAXIMUM IN
cross-sectional_height0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
end_item_identificationARMORED MULTI-PURPOSE VEHICLE (AMPV)
NSN5331-00-251-9371
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7866-339 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: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 3.611 INCHES MINIMUM AND 3.679 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 3.210 INCHES MINIMUM AND 3.240 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
OUTSIDE DIAMETER3.611 INCHES MINIMUM AND 3.679 INCHES MAXIMUM IN
CENTER HOLE DIAMETER3.210 INCHES MINIMUM AND 3.240 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONARMORED MULTI-PURPOSE VEHICLE (AMPV)
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
SUBSTITUTES & CROSS-REFERENCES 8
SR-822A-60-339Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1-223128Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
SAE-AS29513Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
MS29513-339Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
1793-339Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2-339 N602-70Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7866-339?
7866-339 is a O-RING.
What parts can replace 7866-339?
There are 8 known substitutes for 7866-339: SR-822A-60-339, 1-223128, SAE-AS29513 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7866-339?
7866-339 is cataloged in the U.S. Government catalog under NSN 5331-00-251-9371. This indicates validated use in U.S. government and defense supply chains.
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