PartsTable
Technical Data Sheet
PartsTable / O-RING / 66-0183
66-0183 ✓ 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 SPACER,RING is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-166-1076, 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
66-0183
NSN: 5331-00-166-1076
FSC: 5331 — O-RING
CAGE: 0NCC5 — WELCH VACUUM TECHNOLOGY INC (USA)
SPECIFICATIONS
Part Number66-0183
NSN5331-00-166-1076
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 66-0183 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 28
500292Interchangeable
interchangeable cross-reference
interchangeable
0-50-120Interchangeable
interchangeable cross-reference
interchangeable
568120-2Interchangeable
interchangeable cross-reference
interchangeable
AS568-120Interchangeable
interchangeable cross-reference
interchangeable
Z00.N7423510008TBMInterchangeable
interchangeable cross-reference
interchangeable
AS3209-120Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 66-0183?
66-0183 is a SPACER,RING.
What parts can replace 66-0183?
There are 28 known substitutes for 66-0183: 500292, 0-50-120, 568120-2 and 25 more. Substitute compatibility should be verified for your specific system.
Is 66-0183 still available?
66-0183 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