The Brush,electrical Contact, cataloged under National Stock Number 5977-00-250-9280, 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17 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-250-9280 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Status | ACTIVE |
| Shoulder Width | 0.125 INCHES NOMINAL IN |
| Length | 1.750 INCHES NOMINAL IN |
| Peripheral Speed | 4000 FEET PER MINUTE FT |
| Body Style | RECTANGULAR COMMUTATOR |
| Distance From Center of Hole to Outside Edge | 0.313 INCHES NOMINAL IN |
| Distance From Brush Top to Hole Centerline | 0.250 INCHES NOMINAL IN |
| Distance Between Hole Centers | 0.625 INCHES NOMINAL IN |
| Shoulder Height | 0.500 INCHES NOMINAL IN |
| Top Style | FLAT WITH FRONT AND BACK SHOULDER |
| Style Designator | ONE PIECE |
| Material Document and Classification | UNION CARBIDE CORP,GR AY MFR REF SINGLE MATERIAL RESPONSE |
| Basic Shape Style | UNTHREADED DOUBLE THROUGH HOLE |
| Contact Face Style | FLAT |
| Width | 1.250 INCHES NOMINAL IN |
| Material | ELECTROGRAPHITIC |
| Hole Diameter | 0.203 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 |
| Reference | Meaning |
|---|---|
| NEMAPUBCB1-1961 | 3/9 Design control — primary reference U.S. Government activity |
| 05-170-847PC28 | 5/9 Secondary reference Allis Chalmers Corp |
| 05-172-764PC27 | 5/9 Secondary reference Allis Chalmers Corp |
| 05-181-975-00-046 | 5/9 Secondary reference U.S. Government activity |
NSN 5977-00-250-9280 is a Brush,electrical Contact, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
Key specifications for 5977-00-250-9280: Shoulder Width: 0.125 INCHES NOMINAL IN; Length: 1.750 INCHES NOMINAL IN; Peripheral Speed: 4000 FEET PER MINUTE FT; Body Style: RECTANGULAR COMMUTATOR. 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.