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Technical Data Sheet
PartsTable / O-RING / 845-4558730 ITEM 28
845-4558730 ITEM 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 O-RING is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-166-1063, 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
845-4558730 ITEM 28
NSN: 5331-00-166-1063
FSC: 5331 — O-RING
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
Part Number845-4558730 ITEM 28
NSN5331-00-166-1063
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 845-4558730 ITEM 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 30
AS3209-114Interchangeable
interchangeable cross-reference
interchangeable
56555AInterchangeable
interchangeable cross-reference
interchangeable
SC-B-70399Interchangeable
interchangeable cross-reference
interchangeable
SM-B-171471Interchangeable
interchangeable cross-reference
interchangeable
PLC-11749 ITEMInterchangeable
interchangeable cross-reference
interchangeable
000114EEInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 845-4558730 ITEM 28?
845-4558730 ITEM 28 is a O-RING.
What parts can replace 845-4558730 ITEM 28?
There are 30 known substitutes for 845-4558730 ITEM 28: AS3209-114, 56555A, SC-B-70399 and 27 more. Substitute compatibility should be verified for your specific system.
Is 845-4558730 ITEM 28 still available?
845-4558730 ITEM 28 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026