The Brush,electrical Contact, cataloged under National Stock Number 5977-00-090-2764, 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 15 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-090-2764 |
| Primary Part Number | S1074590 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Length | 0.875 INCHES NOMINAL IN |
| Body Style | RECTANGULAR COMMUTATOR |
| Distance From Center of Hole to Outside Edge | 0.250 INCHES NOMINAL IN |
| Distance From Brush Top to Hole Centerline | 0.250 INCHES NOMINAL IN |
| Distance Between Hole Centers | 0.375 INCHES NOMINAL IN |
| Top Style | FLAT |
| Criticality Code Justification | MATT AND MDCL |
| Style Designator | ONE PIECE |
| Material Document and Classification | WESTINGHOUSE ELEC CO,GR WP 48B MFR REF SINGLE MATERIAL RESPONSE |
| Basic Shape Style | UNTHREADED DOUBLE THROUGH HOLE |
| Contact Face Style | FLAT |
| Width | 0.875 INCHES NOMINAL IN |
| Material | ELECTROGRAPHITIC |
| Hole Diameter | 0.125 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 | Y |
| Part Number | Manufacturer |
|---|---|
| S1074590 PRIMARY | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| ANSI/NEMA PUB NO. CB1 | 5/9 Secondary reference U.S. Government activity |
| S1074590 | 5/9 Secondary reference Westinghouse Electric Corp Control Business Unit |
| S1173561 | 5/9 Secondary reference Westinghouse Electric Corp Control Business Unit |
NSN 5977-00-090-2764 is a Brush,electrical Contact, manufactured by Westinghouse Electric Corp, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-090-2764 has 1 manufacturer part number on file: S1074590 (Westinghouse Electric Corp).
Key specifications for S1074590: Length: 0.875 INCHES NOMINAL IN; Body Style: RECTANGULAR COMMUTATOR; Distance From Center of Hole to Outside Edge: 0.250 INCHES NOMINAL IN; Distance From Brush Top to Hole Centerline: 0.250 INCHES NOMINAL IN. 15 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.