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Technical Data Sheet
PartsTable / COMPONENT / C7953-5618-3B
C7953-5618-3B ✓ 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 RETAINER,NUT AND BOLT is a the manufacturer industrial component. Key specifications include material: STEEL, overall_width: 0.660 INCHES NOMINAL IN, overall_height: 0.420 INCHES NOMINAL IN, overall_length: 0.700 INCHES NOMINAL IN, style_designator: CLIP, surface_treatment: ZINC. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-252-7670, 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
C7953-5618-3B
NSN: 5340-00-252-7670
FSC: 5340
CAGE: 78553 — TINNERMAN PALNUT ENGINEERED PRODUCTS, INC. (USA)
SPECIFICATIONS
materialSTEEL
overall_width0.660 INCHES NOMINAL IN
overall_height0.420 INCHES NOMINAL IN
overall_length0.700 INCHES NOMINAL IN
style_designatorCLIP
surface_treatmentZINC
material_thickness0.025 INCHES NOMINAL IN
NSN5340-00-252-7670
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: C7953-5618-3B 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
•
STYLE DESIGNATOR: CLIP
•
SURFACE TREATMENT: ZINC
•
MATERIAL: STEEL
•
MATERIAL THICKNESS: 0.025 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORCLIP
SURFACE TREATMENTZINC
MATERIALSTEEL
MATERIAL THICKNESS0.025 INCHES NOMINAL IN
OVERALL HEIGHT0.420 INCHES NOMINAL IN
OVERALL LENGTH0.700 INCHES NOMINAL IN
OVERALL WIDTH0.660 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
1800456-1Interchangeable
interchangeable cross-reference
interchangeable
302RInterchangeable
interchangeable cross-reference
interchangeable
6181559-013Interchangeable
interchangeable cross-reference
interchangeable
116731-3007Interchangeable
interchangeable cross-reference
interchangeable
870-1-13Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C7953-5618-3B?
C7953-5618-3B is a RETAINER,NUT AND BOLT.
What parts can replace C7953-5618-3B?
There are 5 known substitutes for C7953-5618-3B: 1800456-1, 302R, 6181559-013 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C7953-5618-3B?
C7953-5618-3B is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-252-7670. 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