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Technical Data Sheet
PartsTable / O-RING / 171000-7
171000-7 ✓ 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 outside_diameter: 0.500 INCHES NOMINAL IN, center_hole_diameter: 0.375 INCHES NOMINAL IN, end_item_identification: STUB PUMP, MEDIUM PRESSURE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-551-9116, 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
171000-7
NSN: 5331-00-551-9116
FSC: 5331 — O-RING
CAGE: 57733 — STEWART-WARNER CORPORATION (USA)
SPECIFICATIONS
outside_diameter0.500 INCHES NOMINAL IN
center_hole_diameter0.375 INCHES NOMINAL IN
end_item_identificationSTUB PUMP, MEDIUM PRESSURE
NSN5331-00-551-9116
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 171000-7 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: 0.063 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.063 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
1820-7Interchangeable
interchangeable cross-reference
interchangeable
AN6227B7Interchangeable
interchangeable cross-reference
interchangeable
13856PC7Interchangeable
interchangeable cross-reference
interchangeable
6227-7Interchangeable
interchangeable cross-reference
interchangeable
SP-36249Interchangeable
interchangeable cross-reference
interchangeable
1F9612Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 171000-7?
171000-7 is a O-RING.
What parts can replace 171000-7?
There are 17 known substitutes for 171000-7: 1820-7, AN6227B7, 13856PC7 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 171000-7?
171000-7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-551-9116. 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