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7866-338 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7866-338: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, outside_diameter: 3.486 INCHES MINIMUM AND 3.554 INCHES MAXIMUM IN, center_hole_diameter: 3.085 INCHES MINIMUM AND 3.115 INCHES MAXIMUM IN, cross-sectional_height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-251-9370, 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
7866-338
NSN: 5331-00-251-9370
FSC: 5331 — O-ring
CAGE: 25184 — PARKER HANNIFIN CORPORATION DIV O-RING DIVISION (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
outside_diameter3.486 INCHES MINIMUM AND 3.554 INCHES MAXIMUM IN
center_hole_diameter3.085 INCHES MINIMUM AND 3.115 INCHES MAXIMUM IN
cross-sectional_height0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
NSN5331-00-251-9370
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7866-338 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: 3.486 INCHES MINIMUM AND 3.554 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 3.085 INCHES MINIMUM AND 3.115 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
OUTSIDE DIAMETER3.486 INCHES MINIMUM AND 3.554 INCHES MAXIMUM IN
CENTER HOLE DIAMETER3.085 INCHES MINIMUM AND 3.115 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
SUBSTITUTES & CROSS-REFERENCES 9
PRP568-338-457-60Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
AS29513-338Reference document
Same NSN cross-reference
Reference document — Secondary reference
C-69-338Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1793-338Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
10V60-141-338Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
SR-822A-60-338Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7866-338?
7866-338 is a O-RING.
What parts can replace 7866-338?
There are 9 known substitutes for 7866-338: PRP568-338-457-60, AS29513-338, C-69-338 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7866-338?
7866-338 is cataloged in the U.S. Government catalog under NSN 5331-00-251-9370. This indicates validated use in U.S. government and defense supply chains.
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