The Holder,electrical Contact Brush, cataloged under National Stock Number 5977-00-357-7978, 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 Raytheon Company Dba Raytheon Co. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-357-7978 |
| Primary Part Number | 2048-1028P1 |
| Item Name | Holder,electrical Contact Brush |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 LOCKNUT |
| Inside Width | 0.191 INCHES MINIMUM IN |
| Top Thread Location | INTERNAL |
| Thread Length | 0.203 INCHES MINIMUM IN |
| Brush Quantity Accommodated Per Holder | 1 |
| Brush Pressure Spring Type Accommodated | HELICAL COMPRESSION |
| Surface Treatment | CADMIUM BOX |
| Inside Thickness | 0.191 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN |
| Material | COPPER ALLOY BOX |
| Thread Size and Series/type Designator | 0.375-32 UNEF |
| 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 |
|---|---|
| 2048-1028P1 | Raytheon Company (USA) |
| 2048-1028P1 PRIMARY | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| 2048-1028P1 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 5977-00-357-7978 is a Holder,electrical Contact Brush, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-357-7978 has 2 manufacturer part numbers on file: 2048-1028P1 (Raytheon Company), 2048-1028P1 (Raytheon Company Dba Raytheon Co).
Key specifications for 2048-1028P1: Furnished Items and Quantity: 1 LOCKNUT; Inside Width: 0.191 INCHES MINIMUM IN; Top Thread Location: INTERNAL; Thread Length: 0.203 INCHES MINIMUM IN. 10 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.