The Holder,electrical Contact Brush, cataloged under National Stock Number 5977-00-959-6006, 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 Reliance Electric Company Dba Reliance & Dodge Brands. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-959-6006 |
| Primary Part Number | 74731-R |
| Item Name | Holder,electrical Contact Brush |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Reliance Electric Company Dba Reliance & Dodge Brands |
| Status | ACTIVE |
| Brush Spring Adjustability | ADJUSTABLE |
| Mounting Facility Quantity | 1 |
| Terminal Quantity | 1 |
| Inside Width | 1.010 INCHES NOMINAL IN |
| Terminal Type | SCREW |
| Inside Length | 1.375 INCHES NOMINAL IN |
| Overall Thickness | 3.125 INCHES NOMINAL IN |
| Brush Quantity Accommodated Per Holder | 1 |
| Brush Pressure Spring Type Accommodated | HELICAL TORSION |
| Mounting Facility | UNTHREADED HOLES |
| Inside Thickness | 0.379 INCHES NOMINAL IN |
| Material | COPPER ALLOY BOX |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 74731-R PRIMARY | Reliance Electric Company Dba Reliance & Dodge Brands (USA) |
| Reference | Meaning |
|---|---|
| 402189-5R | 5/9 Secondary reference Reliance Electric |
| 74731-R | 3/9 Design control — primary reference Reliance Electric |
NSN 5977-00-959-6006 is a Holder,electrical Contact Brush, manufactured by Reliance Electric Company Dba Reliance & Dodge Brands, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-959-6006 has 1 manufacturer part number on file: 74731-R (Reliance Electric Company Dba Reliance & Dodge Brands).
Key specifications for 74731-R: Brush Spring Adjustability: ADJUSTABLE; Mounting Facility Quantity: 1; Terminal Quantity: 1; Inside Width: 1.010 INCHES NOMINAL IN. 12 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.