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Technical Data Sheet
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536509 ✓ 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 O-RING is a the manufacturer industrial component. Key specifications include center_hole_diameter: 2.160 INCHES NOMINAL IN, cross-sectional_height: 0.258 INCHES MINIMUM AND 0.268 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-272-7686, 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
536509
NSN: 5340-00-272-7686
FSC: 5340
CAGE: 80309 — COLEMAN COMPANY, INC., THE DBA COLEMAN DIV THE COLEMAN COMPANY, INC. (USA)
SPECIFICATIONS
center_hole_diameter2.160 INCHES NOMINAL IN
cross-sectional_height0.258 INCHES MINIMUM AND 0.268 INCHES MAXIMUM IN
NSN5340-00-272-7686
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 536509 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
•
RECESS MAJOR INSIDE DIAMETER: 0.562 INCHES NOMINAL IN
•
MATERIAL: LEATHER CATTLEHIDE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: KK-L-231 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OVERALL DIAMETER: 0.687 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.281 INCHES NOMINAL IN
•
BASE MATERIAL THICKNESS: 0.062 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH0.312 INCHES NOMINAL IN
RECESS MAJOR INSIDE DIAMETER0.562 INCHES NOMINAL IN
MATERIALLEATHER CATTLEHIDE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONKK-L-231 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL DIAMETER0.687 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.281 INCHES NOMINAL IN
BASE MATERIAL THICKNESS0.062 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
6155Interchangeable
interchangeable cross-reference
interchangeable
MIL-S-10736Interchangeable
interchangeable cross-reference
interchangeable
2-2-108PKGSTNVLBInterchangeable
interchangeable cross-reference
interchangeable
0S026125Interchangeable
interchangeable cross-reference
interchangeable
536509Interchangeable
interchangeable cross-reference
interchangeable
0S026126Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 536509?
536509 is a O-RING.
What parts can replace 536509?
There are 7 known substitutes for 536509: 6155, MIL-S-10736, 2-2-108PKGSTNVLB and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 536509?
536509 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-272-7686. 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