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Technical Data Sheet
PartsTable / O-RING / 285008-0001 ITEM NO. 66
285008-0001 ITEM NO. 66 ✓ 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 285008-0001 ITEM NO. 66 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 5331-01-647-5972, 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
285008-0001 ITEM NO. 66
NSN: 5331-01-647-5972
FSC: 5331 — O-RING
CAGE: 99657 — MAROTTA CONTROLS INC (USA)
SPECIFICATIONS
Part Number285008-0001 ITEM NO. 66
NSN5331-01-647-5972
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 285008-0001 ITEM NO. 66 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 10
AS3581-220Interchangeable
interchangeable cross-reference
interchangeable
AC180-220Interchangeable
interchangeable cross-reference
interchangeable
ARP568-220MILG23652TYPE2Interchangeable
interchangeable cross-reference
interchangeable
2621-607-01 PC 65-4Interchangeable
interchangeable cross-reference
interchangeable
40688-8 PC 22Interchangeable
interchangeable cross-reference
interchangeable
440051-2200 CPInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 285008-0001 ITEM NO. 66?
285008-0001 ITEM NO. 66 is a 285008-0001 ITEM NO. 66.
What parts can replace 285008-0001 ITEM NO. 66?
There are 10 known substitutes for 285008-0001 ITEM NO. 66: AS3581-220, AC180-220, ARP568-220MILG23652TYPE2 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 285008-0001 ITEM NO. 66?
285008-0001 ITEM NO. 66 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-647-5972. 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