PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

125143Brush,electrical Contact

Symetrics Industries, Llc Dba Extant Aerospace Div Symetrics Industries Dba Extant Aerospace · NSN 5977-01-077-3121 · FSC 5977 · No Item Name Available
Verified by PartsTable
NSN 5977-01-077-3121 — this item is cataloged by the U.S. Government under National Stock Number 5977-01-077-3121. Primary manufacturer part number: 125143.
Features
  • Brush,electrical Contact — FSC 5977
  • Style Designator: SINGLE BEAM CANTILEVER
  • Cantilever Length: 0.380 INCHES NOMINAL IN
  • Beam Thickness: 0.010 INCHES NOMINAL IN
  • Body Style: STRAIGHT FORMED WIRE
  • 2 verified cross-references
  • Primary manufacturer: Symetrics Industries, Llc Dba Extant Aerospace Div Symetrics Industries Dba Extant Aerospace
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Brush,electrical Contact, cataloged under National Stock Number 5977-01-077-3121, is classified within Federal Supply Class 5977 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Symetrics Industries, Llc Dba Extant Aerospace Div Symetrics Industries Dba Extant Aerospace. Government technical data includes 4 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5977-01-077-3121
Primary Part Number125143
Item NameBrush,electrical Contact
FSC / FSG5977 / 59 — No Item Name Available
ManufacturerSymetrics Industries, Llc Dba Extant Aerospace Div Symetrics Industries Dba Extant Aerospace
StatusACTIVE
Style DesignatorSINGLE BEAM CANTILEVER
Cantilever Length0.380 INCHES NOMINAL IN
Beam Thickness0.010 INCHES NOMINAL IN
Body StyleSTRAIGHT FORMED WIRE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5305-00-392-2075 INTERCHANGEABLE
Screw,machine
5935-00-865-923757-20500 INTERCHANGEABLE
Connector,receptacle,electrical
Cinch Connectivity Solutions Inc.
5935-01-059-8038C8825-3-1 INTERCHANGEABLE
Connector,plug,electrical
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
Cross-Reference Index
Part NumberManufacturer
125143 PRIMARY Symetrics Industries, Llc Dba Extant Aerospace Div Symetrics Industries Dba Extant Aerospace (USA)
125143 Astronautics Corporation of America (USA)
Related Parts
5305-00-392-2075INTERCHANGEABLE
SCREW,MACHINE
5935-00-865-9237INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
57-20500
5935-01-059-8038INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
C8825-3-1

Frequently Asked Questions

What is NSN 5977-01-077-3121?

NSN 5977-01-077-3121 is a Brush,electrical Contact, manufactured by Symetrics Industries, Llc Dba Extant Aerospace Div Symetrics Industries Dba Extant Aerospace, classified under FSC 5977 (No Item Name Available). Status: active.

What are the part numbers for NSN 5977-01-077-3121?

NSN 5977-01-077-3121 has 2 cross-referenced part numbers: 125143 (Symetrics Industries, Llc Dba Extant Aerospace Div Symetrics Industries Dba Extant Aerospace), 125143 (Astronautics Corporation of America).

What NSN replaces 5977-01-077-3121?

There are 3 known substitutes for 5977-01-077-3121: 5305-00-392-2075, 5935-00-865-9237, 5935-01-059-8038. Verify interchangeability with system specifications before substitution.

What are the specifications of 125143?

Key specifications for 125143: Style Designator: SINGLE BEAM CANTILEVER; Cantilever Length: 0.380 INCHES NOMINAL IN; Beam Thickness: 0.010 INCHES NOMINAL IN; Body Style: STRAIGHT FORMED WIRE. 4 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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