PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D58503-1Brush,electrical Contact

Robbins and Myers Inc · NSN 5977-00-538-2126 · FSC 5977 · No Item Name Available
Verified by PartsTable
NSN 5977-00-538-2126 — this item is cataloged by the U.S. Government under National Stock Number 5977-00-538-2126. Primary manufacturer part number: D58503-1.
Features
  • Brush,electrical Contact — FSC 5977
  • Style Designator: ONE PIECE
  • Material: CARBON
  • Thickness: 0.187 INCHES NOMINAL IN
  • Head Minor Diameter: 0.125 INCHES NOMINAL IN
  • Length: 0.500 INCHES NOMINAL IN
  • Head Length: 0.125 INCHES NOMINAL IN
  • Contact Face Style: FLAT
Applications
  • Applications requiring Carbon construction
General Description

The Brush,electrical Contact, cataloged under National Stock Number 5977-00-538-2126, 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 Robbins and Myers Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5977-00-538-2126
Primary Part NumberD58503-1
Item NameBrush,electrical Contact
FSC / FSG5977 / 59 — No Item Name Available
ManufacturerRobbins and Myers Inc
StatusACTIVE
Style DesignatorONE PIECE
MaterialCARBON
Thickness0.187 INCHES NOMINAL IN
Head Minor Diameter0.125 INCHES NOMINAL IN
Length0.500 INCHES NOMINAL IN
Head Length0.125 INCHES NOMINAL IN
Contact Face StyleFLAT
Material Document and ClassificationUNION CARBIDE CORP,GR 840F MFR REF SINGLE MATERIAL RESPONSE
Width0.187 INCHES NOMINAL IN
Head Major Diameter0.141 INCHES NOMINAL IN
Top StyleCONICAL HEAD
Body StyleRECTANGULAR COMMUTATOR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5930-01-646-8359 INTERCHANGEABLE
Switch,rotary
Cross-Reference Index
Part NumberManufacturer
D58503-1 Robbins and Myers Inc (USA)
13563-1 Robbins and Myers Inc (USA)
Related Parts
5930-01-646-8359INTERCHANGEABLE
SWITCH,ROTARY

Frequently Asked Questions

What is NSN 5977-00-538-2126?

NSN 5977-00-538-2126 is a Brush,electrical Contact, manufactured by Robbins and Myers Inc, classified under FSC 5977 (No Item Name Available). Status: active.

What are the part numbers for NSN 5977-00-538-2126?

NSN 5977-00-538-2126 has 2 cross-referenced part numbers: D58503-1 (Robbins and Myers Inc), 13563-1 (Robbins and Myers Inc).

What NSN replaces 5977-00-538-2126?

There is 1 known substitute for 5977-00-538-2126: 5930-01-646-8359. Verify interchangeability with system specifications before substitution.

What are the specifications of D58503-1?

Key specifications for D58503-1: Style Designator: ONE PIECE; Material: CARBON; Thickness: 0.187 INCHES NOMINAL IN; Head Minor Diameter: 0.125 INCHES NOMINAL IN. 12 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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