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Technical Data Sheet
PartsTable / O-RING / 8.0-691F-AB ITEM 23
8.0-691F-AB ITEM 23 ✓ 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 8.0-691F-AB ITEM 23 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 5331-01-461-8173, 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
8.0-691F-AB ITEM 23
NSN: 5331-01-461-8173
FSC: 5331 — O-RING
CAGE: 76588 — CORE INDUSTRIES INC. DBA MUELLER STEAM SPECIALTY (USA)
SPECIFICATIONS
Part Number8.0-691F-AB ITEM 23
NSN5331-01-461-8173
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8.0-691F-AB ITEM 23 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 7
61335-502Interchangeable
interchangeable cross-reference
interchangeable
2369Interchangeable
interchangeable cross-reference
interchangeable
S549-100Interchangeable
interchangeable cross-reference
interchangeable
O-C-265Interchangeable
interchangeable cross-reference
interchangeable
1N4193AInterchangeable
interchangeable cross-reference
interchangeable
1531-401Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8.0-691F-AB ITEM 23?
8.0-691F-AB ITEM 23 is a 8.0-691F-AB ITEM 23.
What parts can replace 8.0-691F-AB ITEM 23?
There are 7 known substitutes for 8.0-691F-AB ITEM 23: 61335-502, 2369, S549-100 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8.0-691F-AB ITEM 23?
8.0-691F-AB ITEM 23 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-461-8173. 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