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Technical Data Sheet
PartsTable / O-RING / A64155 ITEM 12
A64155 ITEM 12 ✓ 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 5331-01-466-4166, 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
A64155 ITEM 12
NSN: 5331-01-466-4166
FSC: 5331 — O-RING
CAGE: 0DT23 — EATON CORPORATION DBA EATON INOAC (USA)
SPECIFICATIONS
Part NumberA64155 ITEM 12
NSN5331-01-466-4166
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A64155 ITEM 12 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 15
A61655Interchangeable
interchangeable cross-reference
interchangeable
61655Interchangeable
interchangeable cross-reference
interchangeable
30-3.4.3 PART-8 2INInterchangeable
interchangeable cross-reference
interchangeable
44659Interchangeable
interchangeable cross-reference
interchangeable
A61655 ITEM 5Interchangeable
interchangeable cross-reference
interchangeable
201900Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A64155 ITEM 12?
A64155 ITEM 12 is a O-RING.
What parts can replace A64155 ITEM 12?
There are 15 known substitutes for A64155 ITEM 12: A61655, 61655, 30-3.4.3 PART-8 2IN and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A64155 ITEM 12?
A64155 ITEM 12 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-466-4166. 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