PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-C-55021/1Cable,special Purpose,electrical

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6145-00-729-9270 · FSC 6145 · No Item Name Available
Verified by PartsTable
NSN 6145-00-729-9270 — this item is cataloged by the U.S. Government under National Stock Number 6145-00-729-9270. Primary manufacturer part number: MIL-C-55021/1.
Features
  • Cable,special Purpose,electrical — FSC 6145
  • Round Conductor Size: 20 AWG SINGLE CONDUCTOR
  • Material: PLASTIC POLYAMIDE NYLON SECOND POSITION JACKET SINGLE CONDUCTOR
  • Color: WHITE FIRST POSITION PRIMARY INSULATION SINGLE CONDUCTOR
  • Material: COPPER CORE CONDUCTOR SINGLE CONDUCTOR
  • Conductor Arrangement and Quantity: 1 SINGLES
  • Surface Treatment Document and Classification: ASTM B33 ASSN STD SINGLE TREATMENT RESPONSE CORE CONDUCTOR SINGLE CONDUCTOR
  • Color: GRAY/GREY OR WHITE FOURTH POSITION JACKET SINGLE CONDUCTOR
Applications
  • Electrical power distribution
  • Signal transmission
  • Equipment interconnection
  • Applications requiring Plastic Polyamide Nylon Second Position Jacket Single Conductor construction
General Description

The Cable,special Purpose,electrical, cataloged under National Stock Number 6145-00-729-9270, 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 10 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: FT.

Technical Specifications
ParameterValue
NSN6145-00-729-9270
Primary Part NumberMIL-C-55021/1
Item NameCable,special Purpose,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
Round Conductor Size20 AWG SINGLE CONDUCTOR
MaterialPLASTIC POLYAMIDE NYLON SECOND POSITION JACKET SINGLE CONDUCTOR
ColorWHITE FIRST POSITION PRIMARY INSULATION SINGLE CONDUCTOR
MaterialCOPPER CORE CONDUCTOR SINGLE CONDUCTOR
Conductor Arrangement and Quantity1 SINGLES
Surface Treatment Document and ClassificationASTM B33 ASSN STD SINGLE TREATMENT RESPONSE CORE CONDUCTOR SINGLE CONDUCTOR
ColorGRAY/GREY OR WHITE FOURTH POSITION JACKET SINGLE CONDUCTOR
MaterialPLASTIC POLYVINYL CHLORIDE (PVC) FIRST POSITION PRIMARY INSULATION SINGLE CONDUCTOR
MaterialCOPPER THIRD POSITION SHIELD BRAID METALLIC SINGLE CONDUCTOR
Strand Quantity Per Conductor19 SINGLE CONDUCTOR
Voltage Rating600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE SINGLE CONDUCTOR
MaterialPLASTIC POLYVINYL CHLORIDE (PVC) FOURTH POSITION JACKET SINGLE CONDUCTOR
Surface TreatmentTIN CORE CONDUCTOR SINGLE CONDUCTOR
Cross Section Outside Diameter0.110 INCHES NOMINAL IN
Conductor FormSTRANDED SINGLE CONDUCTOR
Material Document and ClassificationASTM B33 ASSN STD SINGLE MATERIAL RESPONSE CORE CONDUCTOR SINGLE CONDUCTOR
Surface TreatmentTIN THIRD POSITION SHIELD BRAID METALLIC SINGLE CONDUCTOR
Cross-Sectional Shape StyleROUND
Strand Awg Size Per Conductor32 SINGLE CONDUCTOR
Conductor Quantity1
Temp Rating-55.0 CELSIUS AND 105.0 CELSIUS DEGC
Round Conductor Size20 AWG SINGLE CONDUCTOR
MaterialPLASTIC POLYAMIDE NYLON SECOND POSITION JACKET SINGLE CONDUCTOR
ColorWHITE FIRST POSITION PRIMARY INSULATION SINGLE CONDUCTOR
MaterialCOPPER CORE CONDUCTOR SINGLE CONDUCTOR
Conductor Arrangement and Quantity1 SINGLES
Surface Treatment Document and ClassificationASTM B33 ASSN STD SINGLE TREATMENT RESPONSE CORE CONDUCTOR SINGLE CONDUCTOR
ColorGRAY/GREY OR WHITE FOURTH POSITION JACKET SINGLE CONDUCTOR
MaterialPLASTIC POLYVINYL CHLORIDE (PVC) FIRST POSITION PRIMARY INSULATION SINGLE CONDUCTOR
MaterialCOPPER THIRD POSITION SHIELD BRAID METALLIC SINGLE CONDUCTOR
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6145-01-145-0850
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueFT
SMR CodeJZ
Weight0.0200 lbs
Cube0.0000 cu ft
Verified Substitutes 12
6145-01-092-3827B24-19/36N-S2V SUCCESSOR
Cable,special Purpose,electrical
Storm Products Co
Interconnecting Box
Cable,special Purpose,electrical
Cable,special Purpose,electrical
Cable,special Purpose,electrical
5120-00-112-93355120-00-112-9335 INTERCHANGEABLE
Bit,screwdriver
General Services Administration Federal Supply Service
2825-00-218-60789961 INTERCHANGEABLE
Seat,regulating Val
Northrop Grumman Systems Corporation Div Marine Systems
5360-00-291-1193 INTERCHANGEABLE
Spring,helical,compression
4820-00-840-142173-68-1 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Flowserve Corporation Div Flowserve Us Inc
5330-01-005-663813301 INTERCHANGEABLE
Seal Assembly
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
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
MIL-DTL-55021/1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
GMS9-10J20-9 Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems (USA)
8030061-1 Electrodynamics Inc Div L3harris Electrodynamics Inc (USA)
9089505 Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA)
BJ20C9SP Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
NB1932N1SJ National Wire and Cable Corporation Dba National Wire and Cable Div National Cable Molding Corporation (USA)
7368-1 Birnbach Co Inc (USA)
9961 Belden Wire & Cable Company Llc Dba Belden Cdt Electronics Division (USA)
3230 Belden, Inc. (USA)
Related Parts
SUCCESSOR 6145-01-145-0850 Cable,special Purpose,electrical
6145-01-092-3827SUCCESSOR
CABLE,SPECIAL PURPOSE,ELECTRICAL
B24-19/36N-S2V
6625-00-140-5060SUCCESSOR
INTERCONNECTING BOX
6145-00-845-4488SUCCESSOR
CABLE,SPECIAL PURPOSE,ELECTRICAL
6145-01-622-2967SUCCESSOR
CABLE,SPECIAL PURPOSE,ELECTRICAL
5120-00-112-9335INTERCHANGEABLE
BIT,SCREWDRIVER
5120-00-112-9335
2825-00-218-6078INTERCHANGEABLE
SEAT,REGULATING VAL
9961
5360-00-291-1193INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
4820-00-840-1421INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
73-68-1
5330-01-005-6638INTERCHANGEABLE
SEAL ASSEMBLY
13301
5331-01-088-5963INTERCHANGEABLE
O-RING
MA236-21051
5331-01-167-0447INTERCHANGEABLE
O-RING
40A73681

Frequently Asked Questions

What is NSN 6145-00-729-9270?

NSN 6145-00-729-9270 is a Cable,special Purpose,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 6145-00-729-9270?

NSN 6145-00-729-9270 has 10 cross-referenced part numbers: MIL-C-55021/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-55021/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), GMS9-10J20-9 (Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems), 8030061-1 (Electrodynamics Inc Div L3harris Electrodynamics Inc), 9089505 (Army, United States Department of the Dba Rock Island Arsenal Jmtc) and 5 more.

What NSN replaces 6145-00-729-9270?

There are 12 known substitutes for 6145-00-729-9270: 6145-01-092-3827, 6625-00-140-5060, 6145-00-845-4488 and 9 more. Verify interchangeability with system specifications before substitution.

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

Key specifications for MIL-C-55021/1: Round Conductor Size: 20 AWG SINGLE CONDUCTOR; Material: PLASTIC POLYAMIDE NYLON SECOND POSITION JACKET SINGLE CONDUCTOR; Color: WHITE FIRST POSITION PRIMARY INSULATION SINGLE CONDUCTOR; Material: COPPER CORE CONDUCTOR SINGLE CONDUCTOR. 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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