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Technical Data Sheet
PartsTable / O-RING / 7866-222
7866-222 ✓ 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. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-599-2766, 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
7866-222
NSN: 5331-00-599-2766
FSC: 5331 — O-RING
CAGE: 25184 — PARKER HANNIFIN CORPORATION DIV O-RING DIVISION (USA)
SPECIFICATIONS
Part Number7866-222
NSN5331-00-599-2766
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7866-222 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
10124242Interchangeable
interchangeable cross-reference
interchangeable
MD83-28VDC5186SHAFTInterchangeable
interchangeable cross-reference
interchangeable
2BE312Interchangeable
interchangeable cross-reference
interchangeable
530-431Interchangeable
interchangeable cross-reference
interchangeable
2-222 N674-70Interchangeable
interchangeable cross-reference
interchangeable
8484-144-5210Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7866-222?
7866-222 is a O-RING.
What parts can replace 7866-222?
There are 17 known substitutes for 7866-222: 10124242, MD83-28VDC5186SHAFT, 2BE312 and 14 more. Substitute compatibility should be verified for your specific system.
Is 7866-222 still available?
7866-222 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026