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Technical Data Sheet
PartsTable / COMPONENT / 69658C1
69658C1 ✓ 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

RETAINER,HELICAL COMPRESSION SPR. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-577-9051, 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
69658C1
NSN: 5340-00-577-9051
FSC: 5340
CAGE: 92679 — NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ (USA)
SPECIFICATIONS
Part Number69658C1
NSN5340-00-577-9051
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 69658C1 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 8
239Interchangeable
interchangeable cross-reference
interchangeable
1A9736Interchangeable
interchangeable cross-reference
interchangeable
PK121Interchangeable
interchangeable cross-reference
interchangeable
5050838Interchangeable
interchangeable cross-reference
interchangeable
Q4681Interchangeable
interchangeable cross-reference
interchangeable
10128615Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 69658C1?
69658C1 is a RETAINER,HELICAL COMPRESSION SPR.
What parts can replace 69658C1?
There are 8 known substitutes for 69658C1: 239, 1A9736, PK121 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 69658C1?
69658C1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-577-9051. 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