PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8003-1Brush,electrical Contact

Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center · NSN 5977-00-636-1986 · FSC 5977 · No Item Name Available
Verified by PartsTable
NSN 5977-00-636-1986 — this item is cataloged by the U.S. Government under National Stock Number 5977-00-636-1986. Primary manufacturer part number: 8003-1.
Features
  • Brush,electrical Contact — FSC 5977
  • Largest Outside Diameter: 0.131 INCHES NOMINAL IN
  • Shunt Position Designator: 5
  • Terminal Diameter: 0.188 INCHES NOMINAL IN
  • Pressure Spring Type and Quantity: 1 CYLINDRICAL
  • Brush Shunt Length: 0.414 INCHES NOMINAL SINGLE SHUNT IN
  • Material: CARBON
  • Terminal Type and Quantity: 1 ROUND CAP
Applications
  • Applications requiring Carbon construction
General Description

The Brush,electrical Contact, cataloged under National Stock Number 5977-00-636-1986, 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 Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5977-00-636-1986
Primary Part Number8003-1
Item NameBrush,electrical Contact
FSC / FSG5977 / 59 — No Item Name Available
ManufacturerTimken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center
StatusCANCELLED
Largest Outside Diameter0.131 INCHES NOMINAL IN
Shunt Position Designator5
Terminal Diameter0.188 INCHES NOMINAL IN
Pressure Spring Type and Quantity1 CYLINDRICAL
Brush Shunt Length0.414 INCHES NOMINAL SINGLE SHUNT IN
MaterialCARBON
Terminal Type and Quantity1 ROUND CAP
Style DesignatorONE PIECE
Top StyleCYLINDRICAL HEAD
Contact Face StyleCONCAVE
Shunt Insulation Provision and Quantity1 UNINSULATED
Material Document and ClassificationPURE CARBON CO,GR L560 MFR REF SINGLE MATERIAL RESPONSE
Body StyleRECTANGULAR COMMUTATOR
Spring Free Length1.000 INCHES NOMINAL IN
Thickness0.155 INCHES NOMINAL IN
Radius0.270 INCHES NOMINAL IN
Head Diameter0.110 INCHES NOMINAL IN
Head Length0.120 INCHES NOMINAL IN
Length0.276 INCHES NOMINAL IN
Width0.155 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
6130-00-448-1129 INTERCHANGEABLE
Power Supply
5930-00-929-295380031 INTERCHANGEABLE
Switch,sensitive
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5935-00-985-5150381AS149 INTERCHANGEABLE
Adapter,connector
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
3030-01-007-7668 INTERCHANGEABLE
Belt,v
5935-01-161-0813 INTERCHANGEABLE
Adapter,connector
4730-01-356-86453-2MPX INTERCHANGEABLE
Adapter,straight,pipe to Hose
Gates Corporation
5340-01-652-712880031 INTERCHANGEABLE
Cover,access
Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba
Cross-Reference Index
Part NumberManufacturer
8003-1 Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center (USA)
591B1-2 Cardwell Condenser Corp Lapointe-Admiral Div (USA)
A51138 Mutron Corp (USA)
8003-1 Goodrich Corporation Dba Trw Lucas Aerospace (USA)
Related Parts
6130-00-448-1129INTERCHANGEABLE
POWER SUPPLY
5930-00-929-2953INTERCHANGEABLE
SWITCH,SENSITIVE
80031
5935-00-985-5150INTERCHANGEABLE
ADAPTER,CONNECTOR
381AS149
3030-01-007-7668INTERCHANGEABLE
BELT,V
5935-01-161-0813INTERCHANGEABLE
ADAPTER,CONNECTOR
4730-01-356-8645INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE
3-2MPX
5340-01-652-7128INTERCHANGEABLE
COVER,ACCESS
80031

Frequently Asked Questions

What is NSN 5977-00-636-1986?

NSN 5977-00-636-1986 is a Brush,electrical Contact, manufactured by Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center, classified under FSC 5977 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5977-00-636-1986?

NSN 5977-00-636-1986 has 4 cross-referenced part numbers: 8003-1 (Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center), 591B1-2 (Cardwell Condenser Corp Lapointe-Admiral Div), A51138 (Mutron Corp), 8003-1 (Goodrich Corporation Dba Trw Lucas Aerospace).

What NSN replaces 5977-00-636-1986?

There are 7 known substitutes for 5977-00-636-1986: 6130-00-448-1129, 5930-00-929-2953, 5935-00-985-5150 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8003-1?

Key specifications for 8003-1: Largest Outside Diameter: 0.131 INCHES NOMINAL IN; Shunt Position Designator: 5; Terminal Diameter: 0.188 INCHES NOMINAL IN; Pressure Spring Type and Quantity: 1 CYLINDRICAL. 20 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5977-00-636-1986 still in active supply?

NSN 5977-00-636-1986 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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