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Technical Data Sheet
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A17561-1 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A17561-1: O-RING.

The O-RING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-273-2232, 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
A17561-1
NSN: 5331-01-273-2232
FSC: 5331 — O-ring
CAGE: 65254 — BRUNSWICK CORP US MARINE DIV (USA)
SPECIFICATIONS
Part NumberA17561-1
NSN5331-01-273-2232
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A17561-1 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
SUBSTITUTES & CROSS-REFERENCES 1
17561-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A17561-1?
A17561-1 is a O-RING.
What parts can replace A17561-1?
There is 1 known substitute for A17561-1: 17561-1. Substitute compatibility should be verified for your specific system.
What is the NSN for A17561-1?
A17561-1 is cataloged in the U.S. Government catalog under NSN 5331-01-273-2232. This indicates validated use in U.S. government and defense supply chains.
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