The Brush Block Assy, cataloged under National Stock Number 5977-00-079-3401, 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. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-079-3401 |
| Primary Part Number | 4450-1028P2 |
| Item Name | Brush Block Assy |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| 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 |
|---|---|
| 4450-1028P2 | Raytheon Company (USA) |
| 4450-1028P2 PRIMARY | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| 4450-1028P2 | 5/9 Secondary reference Raytheon Company Div Corp |
| AH15083 | 5/2 Secondary reference U.S. Government activity |
| 1023-102 | 5/9 Secondary reference Occo Mfg Corp |
| CJ1421B014 | 5/2 Secondary reference U.S. Government activity |
NSN 5977-00-079-3401 is a Brush Block Assy, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-079-3401 has 2 manufacturer part numbers on file: 4450-1028P2 (Raytheon Company), 4450-1028P2 (Raytheon Company Dba Raytheon Co).
Key specifications for 4450-1028P2: Special Features: 7.312 IN. WIDE; HOLDS 14 BRUSHES; 2 EA SLOTTED MOUNTING HOLES IN. 0 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.