The Brush,electrical Contact, cataloged under National Stock Number 5977-00-296-0490, 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 Reliance Electric Company Dba Reliance & Dodge Brands. Government technical data includes 16 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-296-0490 |
| Primary Part Number | 403959A |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Reliance Electric Company Dba Reliance & Dodge Brands |
| Status | ACTIVE |
| Length | 1.250 INCHES NOMINAL IN |
| Peripheral Speed | 4000 FEET PER MINUTE FT |
| Body Style | RECTANGULAR SLIP RING |
| Terminal Slot Width | 0.188 INCHES NOMINAL IN |
| Top Style | FLAT WITH FRONT EDGE BEVELED |
| Shunt Position Designator | 4 |
| Criticality Code Justification | MATT AND MDCL |
| Style Designator | ONE PIECE |
| Material Document and Classification | NATIONAL GRADE AY MFR REF SINGLE MATERIAL RESPONSE |
| Brush Shunt Length | 2.250 INCHES NOMINAL SINGLE SHUNT IN |
| Contact Face Style | FLAT |
| Shunt Insulation Provision and Quantity | 1 INSULATED |
| Width | 0.250 INCHES NOMINAL IN |
| Material | ELECTROGRAPHITIC |
| Terminal Type and Quantity | 1 STRAIGHT W/SLOT |
| Thickness | 0.625 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 |
|---|---|
| 403959A | Reliance Electric Company Dba Reliance & Dodge Brands (USA) |
| Reference | Meaning |
|---|---|
| ANSI/NEMA PUB NO. CB1 | 5/9 Secondary reference U.S. Government activity |
| 51082040B703 | 5/9 Secondary reference National Electrical Carbon Products, Inc. Div Electrical |
| 403959 | 5/9 Secondary reference Reliance Electric |
| 63000607 | 3/9 Design control — primary reference National Electrical Carbon Products, Inc. Div Electrical |
| RC08-2003 | 5/9 Secondary reference National Electrical Carbon Products, Inc. Div Electrical |
| RC08-2003 | 5/9 Secondary reference Ucar Carbon Co Inc |
| 403959A | 5/9 Secondary reference Reliance Electric |
NSN 5977-00-296-0490 is a Brush,electrical Contact, manufactured by Reliance Electric Company Dba Reliance & Dodge Brands, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-296-0490 has 1 manufacturer part number on file: 403959A (Reliance Electric Company Dba Reliance & Dodge Brands).
Key specifications for 403959A: Length: 1.250 INCHES NOMINAL IN; Peripheral Speed: 4000 FEET PER MINUTE FT; Body Style: RECTANGULAR SLIP RING; Terminal Slot Width: 0.188 INCHES NOMINAL IN. 16 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.