The Brush,electrical Contact, cataloged under National Stock Number 5977-00-239-4056, is classified within Federal Supply Class 5977 (Electrical Contact Brushes and Electrodes) of the Electrical and Electronic Equipment Components group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-239-4056 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Status | ACTIVE |
| Length | 2.000 INCHES NOMINAL IN |
| Body Style | RECTANGULAR COMMUTATOR |
| Terminal Slot Width | 0.281 INCHES NOMINAL IN |
| Top Style | FLAT WITH FRONT EDGE BEVELED |
| Shunt Position Designator | 3 |
| Style Designator | ONE PIECE |
| Material Document and Classification | NATIONAL GRADE SA-3538 MFR REF SINGLE MATERIAL RESPONSE |
| Brush Shunt Length | 5.500 INCHES NOMINAL SINGLE SHUNT IN |
| Contact Face Style | FLAT |
| Shunt Insulation Provision and Quantity | 1 INSULATED |
| Width | 0.750 INCHES NOMINAL IN |
| Material | ELECTROGRAPHITIC |
| Terminal Type and Quantity | 1 STRAIGHT W/SLOT |
| 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 |
| Reference | Meaning |
|---|---|
| NEMA PUB CB1 | 3/9 Design control — primary reference Deblois Oil Co |
| 61006153 | 5/9 Secondary reference National Electrical Carbon Products, Inc. Div Electrical |
| ANSI/NEMA PUB NO. CB1 | 5/9 Secondary reference U.S. Government activity |
| 1295015 | 5/9 Secondary reference Westinghouse Electric Corp |
| S116264O201 | 5/9 Secondary reference National Electrical Carbon Products, Inc. Div Electrical |
NSN 5977-00-239-4056 is a Brush,electrical Contact, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
Key specifications for 5977-00-239-4056: Length: 2.000 INCHES NOMINAL IN; Body Style: RECTANGULAR COMMUTATOR; Terminal Slot Width: 0.281 INCHES NOMINAL IN; Top Style: FLAT WITH FRONT EDGE BEVELED. 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.