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Technical Data Sheet
PartsTable / COMPONENT / 171260-21
171260-21 ✓ 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 BUCKLE is a the manufacturer industrial component. Key specifications include material: PLASTIC OVERALL, end_item_identification: F/A18ATS LOT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-515-3782, 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
171260-21
NSN: 5340-01-515-3782
FSC: 5340
CAGE: 91145 — FLEET READINESS CENTER SOUTHWEST (USA)
SPECIFICATIONS
materialPLASTIC OVERALL
end_item_identificationF/A18ATS LOT
NSN5340-01-515-3782
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 171260-21 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
•
MATERIAL: PLASTIC OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALPLASTIC OVERALL
END ITEM IDENTIFICATIONF/A18ATS LOT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
SS15Interchangeable
interchangeable cross-reference
interchangeable
A2342Interchangeable
interchangeable cross-reference
interchangeable
21A11450Interchangeable
interchangeable cross-reference
interchangeable
SS16Interchangeable
interchangeable cross-reference
interchangeable
35660Interchangeable
interchangeable cross-reference
interchangeable
1990-0719Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 171260-21?
171260-21 is a BUCKLE.
What parts can replace 171260-21?
There are 9 known substitutes for 171260-21: SS15, A2342, 21A11450 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 171260-21?
171260-21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-515-3782. 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