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Technical Data Sheet
PartsTable / COMPONENT / AC231 ITEM 2
AC231 ITEM 2 ✓ 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

CAP,PROTECTIVE,DUST AND MOISTURE. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-373-7486, 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
AC231 ITEM 2
NSN: 5340-01-373-7486
FSC: 5340
CAGE: U1954 — SAFRAN SEATS GB LIMITED (GBR)
SPECIFICATIONS
Part NumberAC231 ITEM 2
NSN5340-01-373-7486
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AC231 ITEM 2 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 17
24SInterchangeable
interchangeable cross-reference
interchangeable
SI-24S 50WInterchangeable
interchangeable cross-reference
interchangeable
ST472Interchangeable
interchangeable cross-reference
interchangeable
03917GInterchangeable
interchangeable cross-reference
interchangeable
1547109Interchangeable
interchangeable cross-reference
interchangeable
95235Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AC231 ITEM 2?
AC231 ITEM 2 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace AC231 ITEM 2?
There are 17 known substitutes for AC231 ITEM 2: 24S, SI-24S 50W, ST472 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AC231 ITEM 2?
AC231 ITEM 2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-373-7486. 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