PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66531Brush,electrical Contact

Goodrich Corporation Dba Goodrich Corp · NSN 5977-00-178-8105 · FSC 5977 · No Item Name Available
Verified by PartsTable
NSN 5977-00-178-8105 — this item is cataloged by the U.S. Government under National Stock Number 5977-00-178-8105. Primary manufacturer part number: 66531.
Features
  • Brush,electrical Contact — FSC 5977
  • Contact Face Style: CONCAVE ON BEVEL
  • Body Style: RECTANGULAR COMMUTATOR
  • Material: METAL GRAPHITE
  • Length: 0.500 INCHES NOMINAL IN
  • Width: 0.498 INCHES NOMINAL IN
  • Material Document and Classification: SPEER CARBON CO,GR 672 MFR REF SINGLE MATERIAL RESPONSE
  • Style Designator: ONE PIECE
Applications
  • Applications requiring Metal Graphite construction
General Description

The Brush,electrical Contact, cataloged under National Stock Number 5977-00-178-8105, 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 Goodrich Corporation Dba Goodrich Corp. Government technical data includes 8 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5977-00-178-8105
Primary Part Number66531
Item NameBrush,electrical Contact
FSC / FSG5977 / 59 — No Item Name Available
ManufacturerGoodrich Corporation Dba Goodrich Corp
StatusCANCELLED
Contact Face StyleCONCAVE ON BEVEL
Body StyleRECTANGULAR COMMUTATOR
MaterialMETAL GRAPHITE
Length0.500 INCHES NOMINAL IN
Width0.498 INCHES NOMINAL IN
Material Document and ClassificationSPEER CARBON CO,GR 672 MFR REF SINGLE MATERIAL RESPONSE
Style DesignatorONE PIECE
Thickness0.248 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
4730-00-132-4588246088N INTERCHANGEABLE
Insert,tube Fitting
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
5365-00-176-087466531 INTERCHANGEABLE
Plug,machine Thread
Parker Hannifin Corporation Div Hydraulic Systems Division
2810-00-306-635166531 INTERCHANGEABLE
Poppet,exhaust
Textron Lycoming Inc Williamsport Plant
4010-00-813-4265 INTERCHANGEABLE
Guy
5307-00-930-791166531 INTERCHANGEABLE
Stud,special
Naval Inventory Control Point Mechanicsburg
5306-00-980-0678795584-2 INTERCHANGEABLE
Bolt,hook
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6150-01-062-9195600573 INTERCHANGEABLE
Harness,electric
Unison Industries Llc
5985-01-528-2484AS398-03 INTERCHANGEABLE
Attenuator,fixed
Spectrum Control, Inc.
Cross-Reference Index
Part NumberManufacturer
7955842 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
B66531CHANGEB Goodrich Corporation Dba Goodrich Corp (USA)
66531 PRIMARY Goodrich Corporation Dba Goodrich Corp (USA)
Related Parts
4730-00-132-4588INTERCHANGEABLE
INSERT,TUBE FITTING
246088N
5365-00-176-0874INTERCHANGEABLE
PLUG,MACHINE THREAD
66531
2810-00-306-6351INTERCHANGEABLE
POPPET,EXHAUST
66531
4010-00-813-4265INTERCHANGEABLE
GUY
5307-00-930-7911INTERCHANGEABLE
STUD,SPECIAL
66531
5306-00-980-0678INTERCHANGEABLE
BOLT,HOOK
795584-2
6150-01-062-9195INTERCHANGEABLE
HARNESS,ELECTRIC
600573
5985-01-528-2484INTERCHANGEABLE
ATTENUATOR,FIXED
AS398-03

Frequently Asked Questions

What is NSN 5977-00-178-8105?

NSN 5977-00-178-8105 is a Brush,electrical Contact, manufactured by Goodrich Corporation Dba Goodrich Corp, classified under FSC 5977 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5977-00-178-8105?

NSN 5977-00-178-8105 has 3 cross-referenced part numbers: 7955842 (U S Army Tank Automotive Command Amsta-Im-Mm), B66531CHANGEB (Goodrich Corporation Dba Goodrich Corp), 66531 (Goodrich Corporation Dba Goodrich Corp).

What NSN replaces 5977-00-178-8105?

There are 8 known substitutes for 5977-00-178-8105: 4730-00-132-4588, 5365-00-176-0874, 2810-00-306-6351 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 66531?

Key specifications for 66531: Contact Face Style: CONCAVE ON BEVEL; Body Style: RECTANGULAR COMMUTATOR; Material: METAL GRAPHITE; Length: 0.500 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5977-00-178-8105 still in active supply?

NSN 5977-00-178-8105 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.
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