The Brush,electrical Contact, cataloged under National Stock Number 5977-00-574-1046, 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 U S Army Tank Automotive Command Amsta-Im-Mm. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-574-1046 |
| Primary Part Number | 8691945 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Length | 1.312 INCHES NOMINAL IN |
| Body Style | RECTANGULAR COMMUTATOR |
| Terminal Hole Diameter | 0.188 INCHES NOMINAL IN |
| Top Style | BEVELED FRONT |
| Clip Type | NEMA HAMMER TYPE CHANNEL A |
| Style Designator | PAIRED |
| Angle | 30.0 DEGREES NOMINAL |
| Brush Shunt Length | 1.124 INCHES MINIMUM AND 1.250 INCHES MAXIMUM ALL SHUNTS IN |
| Contact Face Style | CONCAVE |
| Shunt Insulation Provision and Quantity | 2 UNINSULATED |
| Width | 1.057 INCHES MINIMUM AND 1.062 INCHES MAXIMUM IN |
| Material | CARBON |
| Terminal Type and Quantity | 1 BENT W/HOLE |
| Thickness | 0.395 INCHES MINIMUM AND 0.400 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 |
| Part Number | Manufacturer |
|---|---|
| 8691945 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 30300-1173 | 5/9 Secondary reference Lucas Aerospace Power Equipment Corporation |
| 10912456 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 5977-00-574-1046 is a Brush,electrical Contact, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-574-1046 has 1 manufacturer part number on file: 8691945 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8691945: Length: 1.312 INCHES NOMINAL IN; Body Style: RECTANGULAR COMMUTATOR; Terminal Hole Diameter: 0.188 INCHES NOMINAL IN; Top Style: BEVELED FRONT. 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.