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Technical Data Sheet
PartsTable / COMPONENT / ES-A1166
ES-A1166 ✓ 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 DISK,SOLID,PLAIN is a the manufacturer industrial component. Key specifications include diameter: 1.000 INCHES NOMINAL IN, material: RUBBER CHLOROPRENE CLASS CR, thickness: 0.625 INCHES NOMINAL IN, machined_surface_finish: SMOOTH. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-225-6485, 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
ES-A1166
NSN: 5340-01-225-6485
FSC: 5340
CAGE: 99643 — EATON AEROSPACE LLC DBA EATON AEROSPACE JACKSON (USA)
SPECIFICATIONS
diameter1.000 INCHES NOMINAL IN
materialRUBBER CHLOROPRENE CLASS CR
thickness0.625 INCHES NOMINAL IN
machined_surface_finishSMOOTH
NSN5340-01-225-6485
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ES-A1166 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
•
DIAMETER: 1.000 INCHES NOMINAL IN
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR
•
MACHINED SURFACE FINISH: SMOOTH
•
THICKNESS: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
DIAMETER1.000 INCHES NOMINAL IN
MATERIALRUBBER CHLOROPRENE CLASS CR
MACHINED SURFACE FINISHSMOOTH
THICKNESS0.625 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
A-1-166Interchangeable
interchangeable cross-reference
interchangeable
MIL-I-14652Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-14652BInterchangeable
interchangeable cross-reference
interchangeable
10011166Interchangeable
interchangeable cross-reference
interchangeable
645361Interchangeable
interchangeable cross-reference
interchangeable
GPW-9424-AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ES-A1166?
ES-A1166 is a DISK,SOLID,PLAIN.
What parts can replace ES-A1166?
There are 12 known substitutes for ES-A1166: A-1-166, MIL-I-14652, MIL-DTL-14652B and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ES-A1166?
ES-A1166 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-225-6485. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026