The Brush Block Assy, cataloged under National Stock Number 5977-01-214-1127, 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 Div Rmd Strategic. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Brush Block Assy |
| FSC / FSG | 5977 — Electrical Contact Brushes and Electrodes (FSG 59) |
| Manufacturers | Raytheon Company Div Rmd Strategic (CAGE 05869) |
| Parameter | Value |
|---|---|
| NSN | 5977-01-214-1127 |
| Primary Part Number | 5021-61 |
| Item Name | Brush Block Assy |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Raytheon Company Div Rmd Strategic |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 5021-61 | Raytheon Company Div Rmd Strategic (USA) |
| Reference | Meaning |
|---|---|
| 300814 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5977-01-214-1127 is a Brush Block Assy, manufactured by Raytheon Company Div Rmd Strategic, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-01-214-1127 has 1 manufacturer part number on file: 5021-61 (Raytheon Company Div Rmd Strategic).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-214-9287. Verify interchangeability with system specifications before substitution.
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.