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Technical Data Sheet
PartsTable / COMPONENT / A7949.001.142
A7949.001.142 ✓ 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 A7949.001.142 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-191-0474, 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
A7949.001.142
NSN: 5330-01-191-0474
FSC: 5330
CAGE: 01343 — ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY (USA)
SPECIFICATIONS
Part NumberA7949.001.142
NSN5330-01-191-0474
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A7949.001.142 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: 0.156 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
•
CENTER HOLE DIAMETER: 0.500 INCHES NOMINAL IN
•
PERIPHERAL DIAMETER: 0.670 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.156 INCHES NOMINAL IN
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
CENTER HOLE DIAMETER0.500 INCHES NOMINAL IN
PERIPHERAL DIAMETER0.670 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
20186PC18Interchangeable
interchangeable cross-reference
interchangeable
9635PC31Interchangeable
interchangeable cross-reference
interchangeable
9651PC37Interchangeable
interchangeable cross-reference
interchangeable
20221 FIND 14Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A7949.001.142?
A7949.001.142 is a A7949.001.142.
What parts can replace A7949.001.142?
There are 4 known substitutes for A7949.001.142: 20186PC18, 9635PC31, 9651PC37 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A7949.001.142?
A7949.001.142 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-191-0474. 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