The Holder,electrical Contact Brush, cataloged under National Stock Number 5977-00-239-0003, is classified within Federal Supply Class 5977 (Electrical Contact Brushes and Electrodes) of the Electrical and Electronic Equipment Components group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-239-0003 |
| Item Name | Holder,electrical Contact Brush |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Status | ACTIVE |
| Brush Spring Adjustability | NONADJUSTABLE |
| Mounting Facility Quantity | 2 |
| Terminal Quantity | 1 |
| Inside Width | 0.504 INCHES NOMINAL IN |
| Terminal Type | BINDING POST |
| Inside Length | 1.688 INCHES NOMINAL IN |
| Top Thread Location | EXTERNAL |
| Thread Length | 0.250 INCHES NOMINAL IN |
| Overall Thickness | 2.000 INCHES NOMINAL IN |
| Brush Quantity Accommodated Per Holder | 1 |
| Brush Pressure Spring Type Accommodated | HELICAL COMPRESSION |
| Mounting Facility | UNTHREADED HOLES |
| Inside Thickness | 0.504 INCHES NOMINAL IN |
| Material | COPPER ALLOY BOX |
| Thread Size and Series/type Designator | 0.750-20 UNEF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 14-205-722-00-503 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5977-00-239-0003 is a Holder,electrical Contact Brush, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
Key specifications for 5977-00-239-0003: Brush Spring Adjustability: NONADJUSTABLE; Mounting Facility Quantity: 2; Terminal Quantity: 1; Inside Width: 0.504 INCHES NOMINAL IN. 15 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.