PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-W-8777Wire,electrical

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6145-00-553-0836 · FSC 6145 · No Item Name Available
Verified by PartsTable
NSN 6145-00-553-0836 — this item is cataloged by the U.S. Government under National Stock Number 6145-00-553-0836. Primary manufacturer part number: MIL-W-8777.
Features
  • Wire,electrical — FSC 6145
  • Material: RESIN SILICONE FIRST POSITION PRIMARY INSULATION SINGLE CONDUCTOR
  • Material: COPPER CORE CONDUCTOR SINGLE CONDUCTOR
  • Strand Awg Size Per Conductor: 25 SINGLE CONDUCTOR
  • Material: GLASS FIBER OR GLASS FIBER AND PLASTIC POLYESTER SECOND POSITION BRAID NON-METALLIC SINGLE CONDUCTOR
  • Conductor Form: STRANDED SINGLE CONDUCTOR
  • Precious Material and Location: SURFACE SINGLE CONDUCTOR SILVER
  • Material Document and Classification: QQ-W-343,SOFT FED SPEC SINGLE MATERIAL RESPONSE CORE CONDUCTOR SINGLE CONDUCTOR
Applications
  • Electrical power distribution
  • Signal transmission
  • Equipment interconnection
  • Applications requiring Resin Silicone First Position Primary Insulation Single Conductor construction
General Description

The Wire,electrical, cataloged under National Stock Number 6145-00-553-0836, 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 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: FT.

Technical Specifications
ParameterValue
NSN6145-00-553-0836
Primary Part NumberMIL-W-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
StatusCANCELLED
MaterialRESIN SILICONE FIRST POSITION PRIMARY INSULATION SINGLE CONDUCTOR
MaterialCOPPER CORE CONDUCTOR SINGLE CONDUCTOR
Strand Awg Size Per Conductor25 SINGLE CONDUCTOR
MaterialGLASS FIBER OR GLASS FIBER AND PLASTIC POLYESTER SECOND POSITION BRAID NON-METALLIC SINGLE CONDUCTOR
Conductor FormSTRANDED SINGLE CONDUCTOR
Precious Material and LocationSURFACE SINGLE CONDUCTOR SILVER
Material Document and ClassificationQQ-W-343,SOFT FED SPEC SINGLE MATERIAL RESPONSE CORE CONDUCTOR SINGLE CONDUCTOR
MaterialPLASTIC POLYESTER THIRD POSITION JACKET SINGLE CONDUCTOR
Surface TreatmentSILVER CORE CONDUCTOR SINGLE CONDUCTOR
Round Conductor Size4 AWG SINGLE CONDUCTOR
ColorWHITE OR TAN FIRST POSITION COVER SINGLE CONDUCTOR
Precious MaterialSILVER
Voltage Rating600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE SINGLE CONDUCTOR
Strand Quantity Per Conductor133 SINGLE CONDUCTOR
Cross-Sectional Shape StyleROUND
Cross Section Outside Diameter0.360 INCHES NOMINAL IN
Temp Rating200.0 CELSIUS DEGC
MaterialRESIN SILICONE FIRST POSITION PRIMARY INSULATION SINGLE CONDUCTOR
MaterialCOPPER CORE CONDUCTOR SINGLE CONDUCTOR
Strand Awg Size Per Conductor25 SINGLE CONDUCTOR
MaterialGLASS FIBER OR GLASS FIBER AND PLASTIC POLYESTER SECOND POSITION BRAID NON-METALLIC SINGLE CONDUCTOR
Conductor FormSTRANDED SINGLE CONDUCTOR
Precious Material and LocationSURFACE SINGLE CONDUCTOR SILVER
Material Document and ClassificationQQ-W-343,SOFT FED SPEC SINGLE MATERIAL RESPONSE CORE CONDUCTOR SINGLE CONDUCTOR
MaterialPLASTIC POLYESTER THIRD POSITION JACKET SINGLE CONDUCTOR
Surface TreatmentSILVER CORE CONDUCTOR SINGLE CONDUCTOR
Round Conductor Size4 AWG SINGLE CONDUCTOR
ColorWHITE OR TAN FIRST POSITION COVER SINGLE CONDUCTOR
Precious MaterialSILVER
Voltage Rating600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE SINGLE CONDUCTOR
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor6145-00-735-7764
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueFT
SMR CodeZN
Weight0.1000 lbs
Cube0.0004 cu ft
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
6145-00-553-0840 INTERCHANGEABLE
Wire,electrical
6145-01-300-5869 INTERCHANGEABLE
Wire,electrical
6145-01-300-5870 INTERCHANGEABLE
Wire,electrical
Cross-Reference Index
Part NumberManufacturer
MIL-W-8777 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
RSS5-106-4 Cerro Wire and Cable Inc (USA)
MS25471-4 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-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
6145-00-553-0840INTERCHANGEABLE
WIRE,ELECTRICAL
6145-01-300-5869INTERCHANGEABLE
WIRE,ELECTRICAL
6145-01-300-5870INTERCHANGEABLE
WIRE,ELECTRICAL

Frequently Asked Questions

What is NSN 6145-00-553-0836?

NSN 6145-00-553-0836 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: cancelled.

What are the part numbers for NSN 6145-00-553-0836?

NSN 6145-00-553-0836 has 4 cross-referenced part numbers: MIL-W-8777 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), RSS5-106-4 (Cerro Wire and Cable Inc), MS25471-4 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-8777 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6145-00-553-0836?

There are 9 known substitutes for 6145-00-553-0836: 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-W-8777?

Key specifications for MIL-W-8777: Material: RESIN SILICONE FIRST POSITION PRIMARY INSULATION SINGLE CONDUCTOR; Material: COPPER CORE CONDUCTOR SINGLE CONDUCTOR; Strand Awg Size Per Conductor: 25 SINGLE CONDUCTOR; Material: GLASS FIBER OR GLASS FIBER AND PLASTIC POLYESTER SECOND POSITION BRAID NON-METALLIC SINGLE CONDUCTOR. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6145-00-553-0836 still in active supply?

NSN 6145-00-553-0836 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com