The Brush,electrical Contact, cataloged under National Stock Number 5977-00-378-9057, 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 Miraj Corp. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5977-00-378-9057 |
| Primary Part Number | 10538 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Miraj Corp |
| Status | ACTIVE |
| Length | 0.625 INCHES NOMINAL IN |
| Body Style | RECTANGULAR COMMUTATOR |
| Radius | 0.625 INCHES NOMINAL IN |
| Shunt Position Designator | 5 |
| Style Designator | ONE PIECE |
| Material Document and Classification | UNITED STATES GRAPHITE CO GRADE 233 MFR REF SINGLE MATERIAL RESPONSE |
| Pressure Spring Type and Quantity | 1 CYLINDRICAL |
| Brush Shunt Length | 1.500 INCHES MINIMUM AND 1.562 INCHES MAXIMUM SINGLE SHUNT IN |
| Contact Face Style | CONCAVE |
| Shunt Insulation Provision and Quantity | 1 UNINSULATED |
| Width | 0.433 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN |
| Material | ELECTROGRAPHITIC |
| Terminal Type and Quantity | 1 ROUND CAP |
| Thickness | 0.246 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5977-00-378-9057 is a Brush,electrical Contact, manufactured by Miraj Corp, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-378-9057 has 2 manufacturer part numbers on file: 10538 (Miraj Corp), 10706-4 (Cincinnati Electrical Tool Inc).
Key specifications for 10538: Length: 0.625 INCHES NOMINAL IN; Body Style: RECTANGULAR COMMUTATOR; Radius: 0.625 INCHES NOMINAL IN; 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.