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55858 ✓ 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

CABLE ASSEMBLY,SPECIAL PURPOSE,E. Key specifications include end_item_identification: COOLING SKID,ELEC 5999-01-517-6184 ABOARD 417 FT NSC (WMSL-750) COAST GUARD VESSELS FT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-018-7446, 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
55858
NSN: 5330-00-018-7446
FSC: 5330
CAGE: 76680 — FEDERAL-MOGUL CORP CHASSIS PRODUCTS DIV (USA)
SPECIFICATIONS
end_item_identificationCOOLING SKID,ELEC 5999-01-517-6184 ABOARD 417 FT NSC (WMSL-750) COAST GUARD VESSELS FT
NSN5330-00-018-7446
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 55858 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
KEY FEATURES
•
HOUSING BORE DIAMETER: 4.756 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
MATERIAL: LEATHER AND RUBBER SYNTHETIC SEALING ELEMENT
•
ACCOMMODATED SHAFT DIAMETER: 3.437 INCHES NOMINAL IN
•
CASE STYLE: SQUARE
•
SEAL WIDTH: 0.562 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS (FLIS)
HOUSING BORE DIAMETER4.756 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
MATERIALLEATHER AND RUBBER SYNTHETIC SEALING ELEMENT
ACCOMMODATED SHAFT DIAMETER3.437 INCHES NOMINAL IN
CASE STYLESQUARE
SEAL WIDTH0.562 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
DM6633ALTFPC6Interchangeable
interchangeable cross-reference
interchangeable
5-8INBALLGRADE2SInterchangeable
interchangeable cross-reference
interchangeable
B6Q1175AInterchangeable
interchangeable cross-reference
interchangeable
55858Interchangeable
interchangeable cross-reference
interchangeable
C1TT5246UInterchangeable
interchangeable cross-reference
interchangeable
00044Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 55858?
55858 is a CABLE ASSEMBLY,SPECIAL PURPOSE,E.
What parts can replace 55858?
There are 6 known substitutes for 55858: DM6633ALTFPC6, 5-8INBALLGRADE2S, B6Q1175A and 3 more. Substitute compatibility should be verified for your specific system.
Is 55858 still available?
55858 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