The Brush,electrical Contact, cataloged under National Stock Number 5977-00-552-1257, 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 Kurz & Root Generator Company, Llc. Government technical data includes 17 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-552-1257 |
| Primary Part Number | 19-946-103 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Kurz & Root Generator Company, Llc |
| Status | ACTIVE |
| Outer Edge to Slot Edge Distance | 0.203 INCHES NOMINAL IN |
| Length | 1.125 INCHES NOMINAL IN |
| Body Style | RECTANGULAR COMMUTATOR |
| Radius | 1.500 INCHES NOMINAL IN |
| Top Style | FLAT WITH RECTANGULAR SLOT |
| Shunt Position Designator | 8 |
| Style Designator | ONE PIECE |
| Material Document and Classification | UNION CARBIDE CORP,GR CO-3913 MFR REF SINGLE MATERIAL RESPONSE |
| Brush Shunt Length | 2.375 INCHES NOMINAL SINGLE SHUNT IN |
| Contact Face Style | CONCAVE |
| Shunt Insulation Provision and Quantity | 1 UNINSULATED |
| Slot Depth | 0.063 INCHES NOMINAL IN |
| Width | 0.750 INCHES NOMINAL IN |
| Material | METAL GRAPHITE |
| Terminal Type and Quantity | 1 STRAIGHT W/SLOT |
| Slot Width | 0.344 INCHES NOMINAL IN |
| Thickness | 0.500 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 |
|---|---|
| 19-946-103 PRIMARY | Kurz & Root Generator Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| RC16-2406 | 5/2 Secondary reference U.S. Government activity |
| JHP13-323 | 5/9 Secondary reference Hollingsworth John R Co |
| PA5029 | 5/9 Secondary reference National Electrical Carbon Products, Inc. Div Electrical |
| PA5029 | 5/9 Secondary reference U.S. Government activity |
| ANSI/NEMA PUB NO. CB1 | 5/9 Secondary reference U.S. Government activity |
NSN 5977-00-552-1257 is a Brush,electrical Contact, manufactured by Kurz & Root Generator Company, Llc, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-552-1257 has 1 manufacturer part number on file: 19-946-103 (Kurz & Root Generator Company, Llc).
Key specifications for 19-946-103: Outer Edge to Slot Edge Distance: 0.203 INCHES NOMINAL IN; Length: 1.125 INCHES NOMINAL IN; Body Style: RECTANGULAR COMMUTATOR; Radius: 1.500 INCHES NOMINAL IN. 17 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.