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PartsTable / COMPONENT / 3550-4
3550-4 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

CABLE ASSEMBLY,SPECIAL PURPOSE,E. Key specifications include material: COPPER ALLOY OVERALL EXCEPT INSULATION, thread_length: 0.078 INCHES IN, overall_height: 0.421 INCHES IN, terminal_length: 0.188 INCHES IN, largest_diameter: 0.065 INCHES SINGLE END IN, basic_shape_style: NONTUBULAR, HEX. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2810-00-118-9301, 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
3550-4
NSN: 2810-00-118-9301
FSC: 2810
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL EXCEPT INSULATION
thread_length0.078 INCHES IN
overall_height0.421 INCHES IN
terminal_length0.188 INCHES IN
largest_diameter0.065 INCHES SINGLE END IN
basic_shape_styleNONTUBULAR, HEX
surface_treatmentTIN CONDUCTOR ACCOMMODATION SINGLE LAYER
width_across_flats0.156 INCHES IN
mounting_method_styleTAPPED HOLE
mounting_thread_seriesUNIFIED NATIONAL COARSE (UNC)
supplementary_features1 PINT CAN
end_item_identificationACFT ENG R1830
NSN2810-00-118-9301
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CABLE ASSEMBLY,SPECIAL PURPOSE,E TITLE COMPONENT PN 3550-4 MFR CABLE ASSEMBLY,SPECIAL
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: MATL MAGNESIUM ALLOY PER AMS 4434; 18.0 IN. OD BY 2.352 IN. DEEP; BORE 6.312 IN. DIA; 7 FINS WITH 1 BOSS EA; 12 RIBS IN
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONACFT ENG R1830
GENERAL CHARACTERISTICS ITEM DESCRIPTIONMATL MAGNESIUM ALLOY PER AMS 4434; 18.0 IN. OD BY 2.352 IN. DEEP; BORE 6.312 IN. DIA; 7 FINS WITH 1 BOSS EA; 12 RIBS IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
V-2Interchangeable
interchangeable cross-reference
interchangeable
X-603BInterchangeable
interchangeable cross-reference
interchangeable
CDA148Interchangeable
interchangeable cross-reference
interchangeable
572-4890-01-05-19Interchangeable
interchangeable cross-reference
interchangeable
1989370-1Interchangeable
interchangeable cross-reference
interchangeable
3550-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3550-4?
3550-4 is a CABLE ASSEMBLY,SPECIAL PURPOSE,E.
What parts can replace 3550-4?
There are 8 known substitutes for 3550-4: V-2, X-603B, CDA148 and 5 more. Substitute compatibility should be verified for your specific system.
Is 3550-4 still available?
3550-4 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