The Brush,electrical Contact, cataloged under National Stock Number 5977-00-552-0706, 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 Concentric Rockford Inc. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-552-0706 |
| Primary Part Number | D25287-1 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Concentric Rockford Inc |
| Status | ACTIVE |
| Length | 0.875 INCHES NOMINAL IN |
| Terminal Diameter | 0.437 INCHES NOMINAL IN |
| Body Style | RECTANGULAR COMMUTATOR |
| Shunt Position Designator | 5 |
| Style Designator | ONE PIECE |
| Spring Free Length | 1.375 INCHES NOMINAL IN |
| Pressure Spring Type and Quantity | 1 CYLINDRICAL WITH REDUCED END |
| Brush Shunt Length | 1.250 INCHES NOMINAL SINGLE SHUNT IN |
| Contact Face Style | CONCAVE |
| Shunt Insulation Provision and Quantity | 1 UNINSULATED |
| Width | 0.375 INCHES NOMINAL IN |
| Material | CARBON |
| Terminal Type and Quantity | 1 ROUND CAP W/EARS |
| Thickness | 0.250 INCHES NOMINAL IN |
| 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 |
|---|---|
| D25287-1 PRIMARY | Concentric Rockford Inc (USA) |
NSN 5977-00-552-0706 is a Brush,electrical Contact, manufactured by Concentric Rockford Inc, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-552-0706 has 1 manufacturer part number on file: D25287-1 (Concentric Rockford Inc).
Key specifications for D25287-1: Length: 0.875 INCHES NOMINAL IN; Terminal Diameter: 0.437 INCHES NOMINAL IN; Body Style: RECTANGULAR COMMUTATOR; Shunt Position Designator: 5. 14 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.