PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILW16878-4Wire,electrical

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6145-00-397-3059 · FSC 6145 · No Item Name Available
Verified by PartsTable
NSN 6145-00-397-3059 — this item is cataloged by the U.S. Government under National Stock Number 6145-00-397-3059. Primary manufacturer part number: MILW16878-4.
Features
  • Wire,electrical — FSC 6145
  • Cross-Sectional Shape Style: ROUND
  • Material: COPPER CORE CONDUCTOR SINGLE CONDUCTOR
  • Surface Treatment: TIN CORE CONDUCTOR SINGLE CONDUCTOR
  • Round Conductor Size: 18 AWG SINGLE CONDUCTOR
  • Material Document and Classification: MIL-W-16878 MIL SPEC SINGLE MATERIAL RESPONSE FIRST POSITION PRIMARY INSULATION SINGLE CONDUCTOR
  • Voltage Rating: 600.0 AC MAXIMUM RATED WORKING VOLTAGE ALL CONDUCTORS
  • Conductor Form: STRANDED SINGLE CONDUCTOR
Applications
  • Electrical power distribution
  • Signal transmission
  • Equipment interconnection
  • Applications requiring Copper Core Conductor Single Conductor construction
General Description

The Wire,electrical, cataloged under National Stock Number 6145-00-397-3059, 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 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6145-00-397-3059
Primary Part NumberMILW16878-4
Item NameWire,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
MaterialCOPPER CORE CONDUCTOR SINGLE CONDUCTOR
Surface TreatmentTIN CORE CONDUCTOR SINGLE CONDUCTOR
Round Conductor Size18 AWG SINGLE CONDUCTOR
Material Document and ClassificationMIL-W-16878 MIL SPEC SINGLE MATERIAL RESPONSE FIRST POSITION PRIMARY INSULATION SINGLE CONDUCTOR
Voltage Rating600.0 AC MAXIMUM RATED WORKING VOLTAGE ALL CONDUCTORS
Conductor FormSTRANDED SINGLE CONDUCTOR
Strand Awg Size Per Conductor30 SINGLE CONDUCTOR
Strand Quantity Per Conductor19 SINGLE CONDUCTOR
ColorWHITE FIRST POSITION COVER SINGLE CONDUCTOR
MaterialPLASTIC POLYTETRAFLUOROETHYLENE FIRST POSITION PRIMARY INSULATION SINGLE CONDUCTOR
Temp Rating-65.0 CELSIUS AND 200.0 CELSIUS DEGC
Cross Section Outside Diameter0.070 INCHES NOMINAL IN
Cross-Sectional Shape StyleROUND
MaterialCOPPER CORE CONDUCTOR SINGLE CONDUCTOR
Surface TreatmentTIN CORE CONDUCTOR SINGLE CONDUCTOR
Round Conductor Size18 AWG SINGLE CONDUCTOR
Material Document and ClassificationMIL-W-16878 MIL SPEC SINGLE MATERIAL RESPONSE FIRST POSITION PRIMARY INSULATION SINGLE CONDUCTOR
Voltage Rating600.0 AC MAXIMUM RATED WORKING VOLTAGE ALL CONDUCTORS
Conductor FormSTRANDED SINGLE CONDUCTOR
Strand Awg Size Per Conductor30 SINGLE CONDUCTOR
Strand Quantity Per Conductor19 SINGLE CONDUCTOR
ColorWHITE FIRST POSITION COVER SINGLE CONDUCTOR
MaterialPLASTIC POLYTETRAFLUOROETHYLENE FIRST POSITION PRIMARY INSULATION SINGLE CONDUCTOR
Temp Rating-65.0 CELSIUS AND 200.0 CELSIUS DEGC
Cross Section Outside Diameter0.070 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6145-00-144-0123M27500-16RC1S06 SUCCESSOR
Wire,electrical
National Electrical Mfrs Assn Dba Nema
6145-00-209-3556M22759/11-22-902 SUCCESSOR
Wire,electrical
Sae International Dba Sae International
6145-00-244-4377M22759/11-22-978 SUCCESSOR
Wire,electrical
Sae International Dba Sae International
6145-00-245-6415M22759/11-20-938 SUCCESSOR
Wire,electrical
Sae International Dba Sae International
6145-00-245-6420M22759/11-22-958 SUCCESSOR
Wire,electrical
Sae International Dba Sae International
6145-00-245-6643M22759/11-24-906 SUCCESSOR
Wire,electrical
Sae International Dba Sae International
6145-00-253-2245M22759/11-22-926 SUCCESSOR
Wire,electrical
Sae International Dba Sae International
6145-00-253-2322M22759/11-22-967 SUCCESSOR
Wire,electrical
Sae International Dba Sae International
6145-00-253-2330M22759/11-24-958 SUCCESSOR
Wire,electrical
Sae International Dba Sae International
6145-00-253-2510M22759/11-24-928 SUCCESSOR
Wire,electrical
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
MILW16878-4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2857 Belden, Inc. (USA)
Related Parts
6145-00-144-0123SUCCESSOR
WIRE,ELECTRICAL
M27500-16RC1S06
6145-00-209-3556SUCCESSOR
WIRE,ELECTRICAL
M22759/11-22-902
6145-00-244-4377SUCCESSOR
WIRE,ELECTRICAL
M22759/11-22-978
6145-00-245-6415SUCCESSOR
WIRE,ELECTRICAL
M22759/11-20-938
6145-00-245-6420SUCCESSOR
WIRE,ELECTRICAL
M22759/11-22-958
6145-00-245-6643SUCCESSOR
WIRE,ELECTRICAL
M22759/11-24-906
6145-00-253-2245SUCCESSOR
WIRE,ELECTRICAL
M22759/11-22-926
6145-00-253-2322SUCCESSOR
WIRE,ELECTRICAL
M22759/11-22-967
6145-00-253-2330SUCCESSOR
WIRE,ELECTRICAL
M22759/11-24-958
6145-00-253-2510SUCCESSOR
WIRE,ELECTRICAL
M22759/11-24-928
6145-00-257-6774SUCCESSOR
WIRE,ELECTRICAL
M22759/11-22-918
6145-00-259-1509SUCCESSOR
WIRE,ELECTRICAL
M22759/11-20-906

Frequently Asked Questions

What is NSN 6145-00-397-3059?

NSN 6145-00-397-3059 is a Wire,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 6145-00-397-3059?

NSN 6145-00-397-3059 has 2 cross-referenced part numbers: MILW16878-4 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 2857 (Belden, Inc.).

What NSN replaces 6145-00-397-3059?

There are 12 known substitutes for 6145-00-397-3059: 6145-00-144-0123, 6145-00-209-3556, 6145-00-244-4377 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILW16878-4?

Key specifications for MILW16878-4: Cross-Sectional Shape Style: ROUND; Material: COPPER CORE CONDUCTOR SINGLE CONDUCTOR; Surface Treatment: TIN CORE CONDUCTOR SINGLE CONDUCTOR; Round Conductor Size: 18 AWG SINGLE CONDUCTOR. 28 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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