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Technical Data Sheet
PartsTable / COMPONENT / 3537.MOD ITEM 26
3537.MOD ITEM 26 ✓ 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 3537.MOD ITEM 26 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-386-2204, 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 26
NSN: 5340-01-386-2204
FSC: 5340
CAGE: U3374 — CAT PUMPS (UK) LTD (GBR)
SPECIFICATIONS
Part Number3537.MOD ITEM 26
NSN5340-01-386-2204
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3537.MOD ITEM 26 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 9
45-116Upgraded Successor
successor cross-reference
successor
7022040Interchangeable
interchangeable cross-reference
interchangeable
A524Interchangeable
interchangeable cross-reference
interchangeable
307-8Interchangeable
interchangeable cross-reference
interchangeable
145E05664CInterchangeable
interchangeable cross-reference
interchangeable
A33429-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3537.MOD ITEM 26?
3537.MOD ITEM 26 is a 3537.MOD ITEM 26.
What parts can replace 3537.MOD ITEM 26?
There are 9 known substitutes for 3537.MOD ITEM 26: 45-116, 7022040, A524 and 6 more. Substitute compatibility should be verified for your specific system.
Is 3537.MOD ITEM 26 still available?
3537.MOD ITEM 26 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