The Brush,electrical Contact, cataloged under National Stock Number 5977-00-280-4378, 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 Westinghouse Electric Corp. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-280-4378 |
| Primary Part Number | S1449866 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Length | 1.500 INCHES NOMINAL IN |
| Body Style | RECTANGULAR COMMUTATOR |
| Terminal Slot Width | 0.281 INCHES NOMINAL IN |
| Top Style | FLAT |
| Shunt Position Designator | 8 |
| Criticality Code Justification | MATT AND MDCL |
| Clip Type | NEMA HAMMER TYPE A |
| Style Designator | ONE PIECE |
| Material Document and Classification | STACKPOLE CARBON CO,GR WL27 MFR REF SINGLE MATERIAL RESPONSE |
| Brush Shunt Length | 3.000 INCHES NOMINAL SINGLE SHUNT IN |
| Contact Face Style | BEVELED |
| Shunt Insulation Provision and Quantity | 1 UNINSULATED |
| Width | 1.000 INCHES NOMINAL IN |
| Bevel Angle | 10.0 DEGREES NOMINAL |
| Material | ELECTROGRAPHITIC |
| Terminal Type and Quantity | 1 ROUND CAP |
| 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 | Y |
| Part Number | Manufacturer |
|---|---|
| S1449866 PRIMARY | Westinghouse Electric Corp (USA) |
| S916291 PRIMARY | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| ANSI/NEMA PUB NO. CB1 | 5/9 Secondary reference U.S. Government activity |
| S1449866 | 5/9 Secondary reference Westinghouse Electric Corp Control Business Unit |
NSN 5977-00-280-4378 is a Brush,electrical Contact, manufactured by Westinghouse Electric Corp, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-280-4378 has 2 manufacturer part numbers on file: S1449866 (Westinghouse Electric Corp), S916291 (Westinghouse Electric Corp).
Key specifications for S1449866: Length: 1.500 INCHES NOMINAL IN; Body Style: RECTANGULAR COMMUTATOR; Terminal Slot Width: 0.281 INCHES NOMINAL IN; Top Style: FLAT. 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.