The Brush,electrical Contact, cataloged under National Stock Number 5977-00-818-7993, is classified within Federal Supply Class 5977 (Electrical Contact Brushes and Electrodes) of the Electrical and Electronic Equipment Components group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-818-7993 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Status | ACTIVE |
| Outer Edge to Slot Edge Distance | 0.125 INCHES NOMINAL IN |
| Length | 1.063 INCHES NOMINAL IN |
| Body Style | RECTANGULAR COMMUTATOR |
| Radius | 1.281 INCHES NOMINAL IN |
| Terminal Slot Width | 0.156 INCHES NOMINAL IN |
| Shunt Position Designator | 2 |
| Style Designator | ONE PIECE |
| Material Document and Classification | NATIONAL CARBON GRADE N2 MFR REF SINGLE MATERIAL RESPONSE |
| Brush Shunt Length | 2.750 INCHES NOMINAL SINGLE SHUNT IN |
| Contact Face Style | CONCAVE |
| Shunt Insulation Provision and Quantity | 1 UNINSULATED |
| Slot Depth | 0.031 INCHES NOMINAL IN |
| Width | 0.625 INCHES NOMINAL IN |
| Material | ELECTROGRAPHITIC |
| Terminal Type and Quantity | 1 STRAIGHT W/SLOT |
| Slot Width | 0.313 INCHES NOMINAL IN |
| Thickness | 0.375 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 |
|---|---|
| RC12-2003 | 5/9 Secondary reference Ucar Carbon Co Inc |
| D18-140GRN2 | 3/9 Design control — primary reference Peerless-Winsmith, Inc. Dba Peerless Winsmith |
| 63914541 | 5/9 Secondary reference National Electrical Carbon Products, Inc. Div Electrical |
NSN 5977-00-818-7993 is a Brush,electrical Contact, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
Key specifications for 5977-00-818-7993: Outer Edge to Slot Edge Distance: 0.125 INCHES NOMINAL IN; Length: 1.063 INCHES NOMINAL IN; Body Style: RECTANGULAR COMMUTATOR; Radius: 1.281 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.