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Technical Data Sheet
PartsTable / COMPONENT / S-2510-3/8-6
S-2510-3/8-6 ✓ 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 S-2510-3/8-6 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-179-9250, 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
S-2510-3/8-6
NSN: 5340-00-179-9250
FSC: 5340
CAGE: 75535 — THE CROSBY GROUP LLC DBA THE CROSBY GROUP (USA)
SPECIFICATIONS
Part NumberS-2510-3/8-6
NSN5340-00-179-9250
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: S-2510-3/8-6 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
•
THREAD CLASS: 2B BODY
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT: ZINC OVERALL
•
BODY LENGTH: 7.124 INCHES MINIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 1 FORM AND 2 CLASS
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) BODY
•
BODY STYLE: ROUND OPEN BODY
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B BODY
MATERIALSTEEL OVERALL
SURFACE TREATMENTZINC OVERALL
BODY LENGTH7.124 INCHES MINIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 1 FORM AND 2 CLASS
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) BODY
BODY STYLEROUND OPEN BODY
NOMINAL THREAD SIZE0.375 INCHES BODY IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
ASTM F 1145-5Upgraded Successor
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FF-T-791Upgraded Successor
successor cross-reference
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11157-1-64Upgraded Successor
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MS27950-7Upgraded Successor
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FFT791-TY1-FM1-CL8-5/16X4 1/2Upgraded Successor
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HG-227-5/16X4 1/2Upgraded Successor
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LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S-2510-3/8-6?
S-2510-3/8-6 is a S-2510-3/8-6.
What parts can replace S-2510-3/8-6?
There are 16 known substitutes for S-2510-3/8-6: ASTM F 1145-5, FF-T-791, 11157-1-64 and 13 more. Substitute compatibility should be verified for your specific system.
Is S-2510-3/8-6 still available?
S-2510-3/8-6 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026