PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-8777Wire,electrical

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6145-01-300-5870 · FSC 6145 · No Item Name Available
Verified by PartsTable
NSN 6145-01-300-5870 — this item is cataloged by the U.S. Government under National Stock Number 6145-01-300-5870. Primary manufacturer part number: MIL-DTL-8777.
Features
  • Wire,electrical — FSC 6145
  • Cross Section Outside Diameter: 0.357 INCHES NOMINAL IN
  • Surface Treatment: SILVER CORE CONDUCTOR SINGLE CONDUCTOR
  • Precious Material and Location: CONDUCTOR COATING SILVER
  • Conductor Form: STRANDED SINGLE CONDUCTOR
  • Precious Material: SILVER
  • Material: COPPER CORE CONDUCTOR SINGLE CONDUCTOR
  • Cross-Sectional Shape Style: ROUND
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 6145-01-300-5870, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6145-01-300-5870
Primary Part NumberMIL-DTL-8777
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 Section Outside Diameter0.357 INCHES NOMINAL IN
Surface TreatmentSILVER CORE CONDUCTOR SINGLE CONDUCTOR
Precious Material and LocationCONDUCTOR COATING SILVER
Conductor FormSTRANDED SINGLE CONDUCTOR
Precious MaterialSILVER
MaterialCOPPER CORE CONDUCTOR SINGLE CONDUCTOR
Cross-Sectional Shape StyleROUND
Voltage Rating600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE SINGLE CONDUCTOR
Test Data Document81349-MIL-W-8777 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Cross Section Outside Diameter0.357 INCHES NOMINAL IN
Surface TreatmentSILVER CORE CONDUCTOR SINGLE CONDUCTOR
Precious Material and LocationCONDUCTOR COATING SILVER
Conductor FormSTRANDED SINGLE CONDUCTOR
Precious MaterialSILVER
MaterialCOPPER CORE CONDUCTOR SINGLE CONDUCTOR
Cross-Sectional Shape StyleROUND
Voltage Rating600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE SINGLE CONDUCTOR
Test Data Document81349-MIL-W-8777 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6145-00-735-7764
HAZMATNo
Verified Substitutes 9
Wire,electrical
6145-01-375-7565MIL-W-8777 SUCCESSOR
Wire,electrical
Defense Logistics Agency Dba Defense Supply Center Philadelphia
6145-00-553-0827 INTERCHANGEABLE
Wire,electrical
6145-00-553-0828 INTERCHANGEABLE
Wire,electrical
6145-00-553-0832 INTERCHANGEABLE
Wire,electrical
6145-00-553-0833 INTERCHANGEABLE
Wire,electrical
6145-00-553-0836 INTERCHANGEABLE
Wire,electrical
6145-00-553-0840 INTERCHANGEABLE
Wire,electrical
6145-01-300-5869 INTERCHANGEABLE
Wire,electrical
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-8777 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS27110-4 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-W-8777 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
SUCCESSOR 6145-00-735-7764 Wire,electrical
6145-01-375-7565SUCCESSOR
WIRE,ELECTRICAL
MIL-W-8777
6145-00-553-0827INTERCHANGEABLE
WIRE,ELECTRICAL
6145-00-553-0828INTERCHANGEABLE
WIRE,ELECTRICAL
6145-00-553-0832INTERCHANGEABLE
WIRE,ELECTRICAL
6145-00-553-0833INTERCHANGEABLE
WIRE,ELECTRICAL
6145-00-553-0836INTERCHANGEABLE
WIRE,ELECTRICAL
6145-00-553-0840INTERCHANGEABLE
WIRE,ELECTRICAL
6145-01-300-5869INTERCHANGEABLE
WIRE,ELECTRICAL

Frequently Asked Questions

What is NSN 6145-01-300-5870?

NSN 6145-01-300-5870 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 6145-01-300-5870?

NSN 6145-01-300-5870 has 3 cross-referenced part numbers: MIL-DTL-8777 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS27110-4 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MIL-W-8777 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6145-01-300-5870?

There are 9 known substitutes for 6145-01-300-5870: 6145-00-735-7764, 6145-01-375-7565, 6145-00-553-0827 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-8777?

Key specifications for MIL-DTL-8777: Cross Section Outside Diameter: 0.357 INCHES NOMINAL IN; Surface Treatment: SILVER CORE CONDUCTOR SINGLE CONDUCTOR; Precious Material and Location: CONDUCTOR COATING SILVER; Conductor Form: STRANDED SINGLE CONDUCTOR. 18 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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