The Brush,electrical Contact, cataloged under National Stock Number 5977-00-617-1540, 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 19 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-617-1540 |
| Primary Part Number | 220A256G03 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Length | 2.000 INCHES NOMINAL IN |
| Peripheral Speed | 6000 FEET PER MINUTE FT |
| Body Style | RECTANGULAR COMMUTATOR |
| Extension Length | 0.184 INCHES NOMINAL IN |
| Terminal Slot Width | 0.219 INCHES NOMINAL IN |
| Top Style | BEVELED FRONT |
| Shunt Position Designator | 2 AND 8 |
| Clip Type | NEMA HAMMER TYPE EXTENDED A |
| Style Designator | ONE PIECE |
| Material Document and Classification | WESTINGHOUSE ELECTRIC CORP,GR W-56A MFR REF SINGLE MATERIAL RESPONSE A |
| Angle | 40.0 DEGREES NOMINAL |
| Brush Shunt Length | 2.500 INCHES NOMINAL ALL SHUNTS IN |
| Contact Face Style | BEVELED |
| Shunt Insulation Provision and Quantity | 2 UNINSULATED |
| Width | 1.250 INCHES NOMINAL IN |
| Bevel Angle | 30.0 DEGREES NOMINAL |
| Material | GRAPHITE |
| Terminal Type and Quantity | 1 FLAG 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 | X |
| Part Number | Manufacturer |
|---|---|
| 1JH142PC19 | Westinghouse Electric Corp (USA) |
| 220A256G03 PRIMARY | Westinghouse Electric Corp (USA) |
| 21D2416SUB8ITEM5GRADEWM56A | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| 6303-3109656REV2PC19WM56A | 5/2 Secondary reference U.S. Government activity |
| 6303-3109656PC19 | 5/2 Secondary reference U.S. Government activity |
NSN 5977-00-617-1540 is a Brush,electrical Contact, manufactured by Westinghouse Electric Corp, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-617-1540 has 3 manufacturer part numbers on file: 1JH142PC19 (Westinghouse Electric Corp), 220A256G03 (Westinghouse Electric Corp), 21D2416SUB8ITEM5GRADEWM56A (Westinghouse Electric Corp).
Key specifications for 220A256G03: Length: 2.000 INCHES NOMINAL IN; Peripheral Speed: 6000 FEET PER MINUTE FT; Body Style: RECTANGULAR COMMUTATOR; Extension Length: 0.184 INCHES NOMINAL IN. 19 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.