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Technical Data Sheet
PartsTable / O-RING / 2001571 ITEM 43
2001571 ITEM 43 ✓ 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 product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-297-4031, 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
2001571 ITEM 43
NSN: 5331-01-297-4031
FSC: 5331 — O-RING
CAGE: 32862 — SHIPS MACHINERY INTERNATIONAL, INC. (USA)
SPECIFICATIONS
Part Number2001571 ITEM 43
NSN5331-01-297-4031
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2001571 ITEM 43 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 2
26134Interchangeable
interchangeable cross-reference
interchangeable
1001387Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2001571 ITEM 43?
2001571 ITEM 43 is a O-RING.
What parts can replace 2001571 ITEM 43?
There are 2 known substitutes for 2001571 ITEM 43: 26134, 1001387. Substitute compatibility should be verified for your specific system.
What is the NSN for 2001571 ITEM 43?
2001571 ITEM 43 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-297-4031. 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