PartsTable TECHNICAL DATA SHEET
NSN 5977-00-256-0633Government record, cited

Holder, Electrical Contact Brush5977-00-256-0633

NSN 5977-00-256-0633 · NIIN 002560633 · Part number 5645A1
Ward Leonard Ct Llc · FSC 5977 — Electrical Contact Brushes and Electrodes · FSG 59 — Electrical and Electronic Equipment Components · CAGE 20019
Government record, cited
NSN 5977-00-256-0633 — this item is cataloged by the U.S. Government under National Stock Number 5977-00-256-0633. Manufacturer of record part number: 5645A1.
Also searched as  5977-00-256-0633 · 5977002560633 · NIIN 002560633 · 00-256-0633 · FSC 5977 Electrical Contact Brushes and Electrodes · CAGE 20019 · 5645A1
Nearby stock numbers  ·
Features
  • Holder,electrical Contact Brush — FSC 5977
  • Brush Spring Adjustability: NONADJUSTABLE
  • Mounting Facility Quantity: 2
  • Inside Width: 0.761 INCHES NOMINAL IN
  • Inside Length: 0.687 INCHES NOMINAL IN
  • Overall Thickness: 2.344 INCHES NOMINAL IN
  • Brush Pressure Spring Type Accommodated: SPIRAL TORSION
  • Mounting Facility: THREADED HOLES
Identification
  • NSN: 5977-00-256-0633
  • NIIN: 002560633
  • FSC: 5977 — Electrical Contact Brushes and Electrodes
  • FSG: 59 — Electrical and Electronic Equipment Components
  • Primary part number: 5645A1
  • Manufacturer: Ward Leonard Ct Llc
General Description

The Holder,electrical Contact Brush, cataloged under National Stock Number 5977-00-256-0633, is classified within Federal Supply Class 5977 (Electrical Contact Brushes and Electrodes) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Ward Leonard Ct Llc. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5977-00-256-0633
Primary Part Number5645A1
Item NameHolder,electrical Contact Brush
FSC / FSG5977 / 59 — Electrical Contact Brushes and Electrodes
ManufacturerWard Leonard Ct Llc
StatusACTIVE
Brush Spring AdjustabilityNONADJUSTABLE
Mounting Facility Quantity2
Inside Width0.761 INCHES NOMINAL IN
Inside Length0.687 INCHES NOMINAL IN
Overall Thickness2.344 INCHES NOMINAL IN
Brush Pressure Spring Type AccommodatedSPIRAL TORSION
Mounting FacilityTHREADED HOLES
Inside Thickness0.316 INCHES NOMINAL IN
MaterialCOPPER ALLOY BOX
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
5645A1 PRIMARY Ward Leonard Ct Llc (USA)
No interchangeability data on file.
Other items in FSC 5977 — Electrical Contact Brushes and Electrodes
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5977-00-001-8018
BRUSH,ELECTRICAL CONTACT
5977-00-001-8867
5977-00-001-8867 · Item name not on file
5977-00-002-9654
5977-00-002-9654 · Item name not on file
5977-00-003-0257
BRUSH SET,ELECTRICAL CONTACT
5977-00-003-0258
HOLDER,ELECTRICAL CONTACT BRUSH
5977-00-003-0264
5977-00-003-0264 · Item name not on file
5977-00-003-1196
ELECTRODE
5977-00-003-1197
5977-00-003-1197 · Item name not on file

Frequently Asked Questions

What is NSN 5977-00-256-0633?

NSN 5977-00-256-0633 is a Holder,electrical Contact Brush, manufactured by Ward Leonard Ct Llc, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.

What part numbers are listed for NSN 5977-00-256-0633?

NSN 5977-00-256-0633 has 1 manufacturer part number on file: 5645A1 (Ward Leonard Ct Llc).

What are the specifications of 5645A1?

Key specifications for 5645A1: Brush Spring Adjustability: NONADJUSTABLE; Mounting Facility Quantity: 2; Inside Width: 0.761 INCHES NOMINAL IN; Inside Length: 0.687 INCHES NOMINAL IN. 9 specifications are documented in the U.S. Government catalog.

Is NSN 5977-00-256-0633 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
PartsTable Design LLC · partstable.com