PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-C-55021/1Cable,power,electrical

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6145-00-866-5658 · FSC 6145 · No Item Name Available
Verified by PartsTable
NSN 6145-00-866-5658 — this item is cataloged by the U.S. Government under National Stock Number 6145-00-866-5658. Primary manufacturer part number: MIL-C-55021/1.
Features
  • Cable,power,electrical — FSC 6145
  • Cross-Sectional Shape Style: ROUND
  • Conductor Quantity: 1
  • Strand Awg Size Per Conductor: 26 SINGLE CONDUCTOR
  • Temp Rating: 105.0 CELSIUS DEGC
  • Voltage Rating: 600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE SINGLE CONDUCTOR
  • Conductor Form: STRANDED SINGLE CONDUCTOR
  • Surface Treatment Document and Classification: ASTM B33-63 ASSN STD SINGLE TREATMENT RESPONSE CORE CONDUCTOR SINGLE CONDUCTOR
Applications
  • Electrical power distribution
  • Signal transmission
  • Equipment interconnection
  • Applications requiring Copper Alloy 101 or Copper Alloy 102 Core Conductor Single Conductor construction
General Description

The Cable,power,electrical, cataloged under National Stock Number 6145-00-866-5658, is classified within Federal Supply Class 6145 (No Item Name Available) of the Electric Wire, Power, and Distribution Equipment group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: FT.

Technical Specifications
ParameterValue
NSN6145-00-866-5658
Primary Part NumberMIL-C-55021/1
Item NameCable,power,electrical
FSC / FSG6145 / 61 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Cross-Sectional Shape StyleROUND
Conductor Quantity1
Strand Awg Size Per Conductor26 SINGLE CONDUCTOR
Temp Rating105.0 CELSIUS DEGC
Voltage Rating600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE SINGLE CONDUCTOR
Conductor FormSTRANDED SINGLE CONDUCTOR
Surface Treatment Document and ClassificationASTM B33-63 ASSN STD SINGLE TREATMENT RESPONSE CORE CONDUCTOR SINGLE CONDUCTOR
Strand Quantity Per Conductor7 SINGLE CONDUCTOR
Nondefinitive Spec/std DataB TYPE
Surface TreatmentTIN CORE CONDUCTOR SINGLE CONDUCTOR
ColorWHITE FIRST POSITION COVER SINGLE CONDUCTOR
Cross Section Outside Diameter0.109 INCHES NOMINAL IN
Conductor Arrangement and Quantity1 SINGLES
MaterialCOPPER ALLOY 101 OR COPPER ALLOY 102 CORE CONDUCTOR SINGLE CONDUCTOR
Round Conductor Size18 AWG SINGLE CONDUCTOR
Material Document and ClassificationASTM B33 ASSN STD SINGLE MATERIAL RESPONSE CORE CONDUCTOR SINGLE CONDUCTOR
Cross-Sectional Shape StyleROUND
Conductor Quantity1
Strand Awg Size Per Conductor26 SINGLE CONDUCTOR
Temp Rating105.0 CELSIUS DEGC
Voltage Rating600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE SINGLE CONDUCTOR
Conductor FormSTRANDED SINGLE CONDUCTOR
Surface Treatment Document and ClassificationASTM B33-63 ASSN STD SINGLE TREATMENT RESPONSE CORE CONDUCTOR SINGLE CONDUCTOR
Strand Quantity Per Conductor7 SINGLE CONDUCTOR
Nondefinitive Spec/std DataB TYPE
Surface TreatmentTIN CORE CONDUCTOR SINGLE CONDUCTOR
ColorWHITE FIRST POSITION COVER SINGLE CONDUCTOR
Cross Section Outside Diameter0.109 INCHES NOMINAL IN
Conductor Arrangement and Quantity1 SINGLES
MaterialCOPPER ALLOY 101 OR COPPER ALLOY 102 CORE CONDUCTOR SINGLE CONDUCTOR
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6145-01-145-0850
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueFT
SMR CodeZN
Weight0.0100 lbs
Cube0.0001 cu ft
Verified Substitutes 5
6145-01-092-3827B24-19/36N-S2V SUCCESSOR
Cable,special Purpose,electrical
Storm Products Co
Cable,special Purpose,electrical
Cable,special Purpose,electrical
Cable,special Purpose,electrical
Cable,special Purpose,electrical
Cross-Reference Index
Part NumberManufacturer
MIL-C-55021/1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
G250008-2 L3harris Technologies, Inc Div Space & Airborne Systems (USA)
MIL-DTL-55021/1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
5SE00389-17 Naval Air Warfare Center Aircraft Division Joint Base Jbmdl (USA)
128C999B18AZ999 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
Related Parts
SUCCESSOR 6145-01-145-0850 Cable,special Purpose,electrical
6145-01-092-3827SUCCESSOR
CABLE,SPECIAL PURPOSE,ELECTRICAL
B24-19/36N-S2V
6145-00-493-1539SUCCESSOR
CABLE,SPECIAL PURPOSE,ELECTRICAL
6145-00-845-4488SUCCESSOR
CABLE,SPECIAL PURPOSE,ELECTRICAL
6145-01-622-2967SUCCESSOR
CABLE,SPECIAL PURPOSE,ELECTRICAL

Frequently Asked Questions

What is NSN 6145-00-866-5658?

NSN 6145-00-866-5658 is a Cable,power,electrical, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 6145 (No Item Name Available). Status: active.

What are the part numbers for NSN 6145-00-866-5658?

NSN 6145-00-866-5658 has 5 cross-referenced part numbers: MIL-C-55021/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), G250008-2 (L3harris Technologies, Inc Div Space & Airborne Systems), MIL-DTL-55021/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 5SE00389-17 (Naval Air Warfare Center Aircraft Division Joint Base Jbmdl), 128C999B18AZ999 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).

What NSN replaces 6145-00-866-5658?

There are 5 known substitutes for 6145-00-866-5658: 6145-01-092-3827, 6145-00-493-1539, 6145-00-845-4488 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-C-55021/1?

Key specifications for MIL-C-55021/1: Cross-Sectional Shape Style: ROUND; Conductor Quantity: 1; Strand Awg Size Per Conductor: 26 SINGLE CONDUCTOR; Temp Rating: 105.0 CELSIUS DEGC. 30 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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