PartsTable TECHNICAL DATA SHEET
SEPTEMBER 2026Technical Data Sheet

RC20-4836NBrush,electrical Contact

Ucar Carbon Co Inc · NSN 5977-00-280-9031 · FSC 5977 · No Item Name Available
Verified by PartsTable
NSN 5977-00-280-9031 — this item is cataloged by the U.S. Government under National Stock Number 5977-00-280-9031. Primary manufacturer part number: RC20-4836N.
Features
  • Brush,electrical Contact — FSC 5977
  • Width: 1.500 INCHES NOMINAL IN
  • Contact Face Style: BEVELED
  • Peripheral Speed: 8000 FEET PER MINUTE FT
  • Material: ELECTROGRAPHITIC
  • Clip Type: NEMA HAMMER TYPE EXTENDED A
  • Top Style: BEVELED FRONT
  • Extension Length: 0.206 INCHES NOMINAL IN
Applications
  • Applications requiring Electrographitic construction
General Description

The Brush,electrical Contact, cataloged under National Stock Number 5977-00-280-9031, 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 Ucar Carbon Co Inc. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5977-00-280-9031
Primary Part NumberRC20-4836N
Item NameBrush,electrical Contact
FSC / FSG5977 / 59 — No Item Name Available
ManufacturerUcar Carbon Co Inc
StatusACTIVE
Width1.500 INCHES NOMINAL IN
Contact Face StyleBEVELED
Peripheral Speed8000 FEET PER MINUTE FT
MaterialELECTROGRAPHITIC
Clip TypeNEMA HAMMER TYPE EXTENDED A
Top StyleBEVELED FRONT
Extension Length0.206 INCHES NOMINAL IN
Terminal Type and Quantity1 STRAIGHT W/SLOT
Shunt Insulation Provision and Quantity2 UNINSULATED
Material Document and ClassificationNATIONAL GRADE SA-45 MFR REF SINGLE MATERIAL RESPONSE
Thickness0.625 INCHES NOMINAL IN
Angle35.0 DEGREES NOMINAL
Shunt Position Designator2 AND 8
Length2.250 INCHES NOMINAL IN
Terminal Slot Width0.281 INCHES NOMINAL IN
Brush Shunt Length4.000 INCHES NOMINAL SINGLE SHUNT IN
Style DesignatorONE PIECE
Bevel Angle20.0 DEGREES NOMINAL
Body StyleRECTANGULAR COMMUTATOR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5977-00-050-1480MS-100958-2 INTERCHANGEABLE
Brush,electrical Contact
Miraj Corp
5977-00-230-6021 INTERCHANGEABLE
Brush,electrical Contact
5977-00-239-7075 INTERCHANGEABLE
Brush,electrical Contact
5977-00-251-9873 INTERCHANGEABLE
Brush,electrical Contact
5977-00-280-3106 INTERCHANGEABLE
Brush,electrical Contact
5977-00-280-4391 INTERCHANGEABLE
Brush,electrical Contact
5977-00-280-4673 INTERCHANGEABLE
Brush,electrical Contact
5977-00-280-9038 INTERCHANGEABLE
Brush,electrical Contact
5977-00-280-9040 INTERCHANGEABLE
Brush,electrical Contact
5977-00-280-9048 INTERCHANGEABLE
Brush,electrical Contact
Cross-Reference Index
Part NumberManufacturer
RC20-4836N Ucar Carbon Co Inc (USA)
S12048720404 National Electrical Carbon Products, Inc. Div Electrical (USA)
K6963777 General Electric Co Outdoor Breaker Business Section (USA)
61008433 National Electrical Carbon Products, Inc. Div Electrical (USA)
NEMA NO. CB1 National Electrical Mfrs Assn Dba Nema (USA)
PA4867 Ucar Carbon Co Inc (USA)
RC20-4836N National Electrical Carbon Products, Inc. Div Electrical (USA)
PA4867 National Electrical Carbon Products, Inc. Div Electrical (USA)
Related Parts
5977-00-050-1480INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
MS-100958-2
5977-00-230-6021INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
5977-00-239-7075INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
5977-00-251-9873INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
5977-00-280-3106INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
5977-00-280-4391INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
5977-00-280-4673INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
5977-00-280-9038INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
5977-00-280-9040INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
5977-00-280-9048INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
5977-00-284-9890INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
5977-00-445-7263INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT

Frequently Asked Questions

What is NSN 5977-00-280-9031?

NSN 5977-00-280-9031 is a Brush,electrical Contact, manufactured by Ucar Carbon Co Inc, classified under FSC 5977 (No Item Name Available). Status: active.

What are the part numbers for NSN 5977-00-280-9031?

NSN 5977-00-280-9031 has 8 cross-referenced part numbers: RC20-4836N (Ucar Carbon Co Inc), S12048720404 (National Electrical Carbon Products, Inc. Div Electrical), K6963777 (General Electric Co Outdoor Breaker Business Section), 61008433 (National Electrical Carbon Products, Inc. Div Electrical), NEMA NO. CB1 (National Electrical Mfrs Assn Dba Nema) and 3 more.

What NSN replaces 5977-00-280-9031?

There are 12 known substitutes for 5977-00-280-9031: 5977-00-050-1480, 5977-00-230-6021, 5977-00-239-7075 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of RC20-4836N?

Key specifications for RC20-4836N: Width: 1.500 INCHES NOMINAL IN; Contact Face Style: BEVELED; Peripheral Speed: 8000 FEET PER MINUTE FT; Material: ELECTROGRAPHITIC. 19 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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