PartsTable
Technical Data Sheet
PartsTable / O-RING / 912-7866
912-7866 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, outside_diameter: 1.139 INCHES MINIMUM AND 1.173 INCHES MAXIMUM IN, center_hole_diameter: 0.918 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN, cross-sectional_height: 0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-263-8033, 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
912-7866
NSN: 5331-00-263-8033
FSC: 5331 — O-RING
CAGE: 25184 — PARKER HANNIFIN CORPORATION DIV O-RING DIVISION (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
outside_diameter1.139 INCHES MINIMUM AND 1.173 INCHES MAXIMUM IN
center_hole_diameter0.918 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN
cross-sectional_height0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
NSN5331-00-263-8033
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 912-7866 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
•
OUTSIDE DIAMETER: 1.139 INCHES MINIMUM AND 1.173 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
CENTER HOLE DIAMETER: 0.918 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER1.139 INCHES MINIMUM AND 1.173 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
END ITEM IDENTIFICATIONW/S: DEEP SUBMERGENCE SYSTEMS PROGRAMS (DSSP); SUPPORT EQUIPMENT, B-1 AIRCRAFT; ARMORED SECURITY VEHICLE, MODEL XM1117; AIRCRAFT, AIRLIFTER C-17A; ENGINE, AIRCRAFT, TF-33-P-7 (C-141A/B); AIRCRAFT, (AC-130H, MC-130H, EC-130E, HC-130); ENGINE, AIRCRAFT TF33-P-3/59 (C/EC-135, B-52H); ENGINE, AIRCRAFT, T56-A-7/15 (C-130B/E/H/N/P); AIRCRAFT, C-2A (REPROCURED); TORPEDO SYSTEMS, MK 50;HEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE A
CENTER HOLE DIAMETER0.918 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
7037030Interchangeable
interchangeable cross-reference
interchangeable
INVOLUTE 14-1 2-1/8Interchangeable
interchangeable cross-reference
interchangeable
17912Interchangeable
interchangeable cross-reference
interchangeable
NTS13783-86Interchangeable
interchangeable cross-reference
interchangeable
ASInterchangeable
interchangeable cross-reference
interchangeable
3-912N602-70Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 912-7866?
912-7866 is a O-RING.
What parts can replace 912-7866?
There are 27 known substitutes for 912-7866: 7037030, INVOLUTE 14-1 2-1/8, 17912 and 24 more. Substitute compatibility should be verified for your specific system.
Is 912-7866 still available?
912-7866 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026