The Brush,electrical Contact, cataloged under National Stock Number 5977-00-417-6842, 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 Carbon/graphite Group Inc the. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-417-6842 |
| Primary Part Number | PD-4635 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Carbon/graphite Group Inc the |
| Status | ACTIVE |
| Length | 1.750 INCHES NOMINAL IN |
| Body Style | RECTANGULAR |
| Terminal Slot Width | 0.190 INCHES NOMINAL IN |
| Top Style | FLAT WITH RIGHT EDGE BEVELED |
| Shunt Position Designator | 8 |
| Style Designator | ONE PIECE |
| Material Document and Classification | MORGANITE INC P/N YG 40 MFR REF SINGLE MATERIAL RESPONSE |
| Brush Shunt Length | 3.250 INCHES NOMINAL SINGLE SHUNT IN |
| Contact Face Style | FLAT |
| Shunt Insulation Provision and Quantity | 1 UNINSULATED |
| Width | 1.000 INCHES NOMINAL IN |
| Material | ELECTROGRAPHITIC |
| Terminal Type and Quantity | 1 STRAIGHT W/SLOT |
| Thickness | 0.375 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5977-00-417-6842 is a Brush,electrical Contact, manufactured by Carbon/graphite Group Inc the, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-417-6842 has 2 manufacturer part numbers on file: PD-4635 (Carbon/graphite Group Inc the), 1133001 (Westinghouse Electric Corp).
3 possible matches (shared part number, not a government interchangeability claim): 5940-00-940-0278, 4935-01-220-0605, 2540-01-520-6819. Verify interchangeability with system specifications before substitution.
Key specifications for PD-4635: Length: 1.750 INCHES NOMINAL IN; Body Style: RECTANGULAR; Terminal Slot Width: 0.190 INCHES NOMINAL IN; Top Style: FLAT WITH RIGHT EDGE BEVELED. 14 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.