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Technical Data Sheet
PartsTable / COMPONENT / 81-1001-28
81-1001-28 ✓ 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 GASKET 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 5330-01-116-1143, 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
81-1001-28
NSN: 5330-01-116-1143
FSC: 5330
CAGE: 91051 — PARKER-HANNIFIN CORPORATION DBA REFRIGERATION SPECIALTIES DIV REFRIGERATING SPECIALTIES DIVISION (USA)
SPECIFICATIONS
Part Number81-1001-28
NSN5330-01-116-1143
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 81-1001-28 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 5
605I5RInterchangeable
interchangeable cross-reference
interchangeable
6051SRInterchangeable
interchangeable cross-reference
interchangeable
AT5370Interchangeable
interchangeable cross-reference
interchangeable
20220-4Interchangeable
interchangeable cross-reference
interchangeable
MS20220-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81-1001-28?
81-1001-28 is a GASKET.
What parts can replace 81-1001-28?
There are 5 known substitutes for 81-1001-28: 605I5R, 6051SR, AT5370 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 81-1001-28?
81-1001-28 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-116-1143. 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