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Technical Data Sheet
PartsTable / O-RING / 3537 MOD ITEM 11
3537 MOD ITEM 11 ✓ 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. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-299-7326, 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
3537 MOD ITEM 11
NSN: 5331-01-299-7326
FSC: 5331 — O-RING
CAGE: 57783 — CAT PUMPS CORP (USA)
SPECIFICATIONS
Part Number3537 MOD ITEM 11
NSN5331-01-299-7326
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3537 MOD ITEM 11 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 11
11338Interchangeable
interchangeable cross-reference
interchangeable
CR11338Interchangeable
interchangeable cross-reference
interchangeable
17905Interchangeable
interchangeable cross-reference
interchangeable
SK46969PC16-3Interchangeable
interchangeable cross-reference
interchangeable
3600-254REVAPCAN6227-41Interchangeable
interchangeable cross-reference
interchangeable
575-4801-1443691REVAPC27Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3537 MOD ITEM 11?
3537 MOD ITEM 11 is a O-RING.
What parts can replace 3537 MOD ITEM 11?
There are 11 known substitutes for 3537 MOD ITEM 11: 11338, CR11338, 17905 and 8 more. Substitute compatibility should be verified for your specific system.
Is 3537 MOD ITEM 11 still available?
3537 MOD ITEM 11 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