The Brush,electrical Contact, cataloged under National Stock Number 5977-00-019-0732, 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 Helwig Carbon Products Inc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-019-0732 |
| Primary Part Number | 12-871531-778-2-01 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Helwig Carbon Products Inc |
| Status | ACTIVE |
| Length | 3.000 INCHES NOMINAL IN |
| Body Style | RECTANGULAR |
| Top Style | BEVELED FRONT WITH LEFT AND RIGHT EDGE BEVELED |
| Shunt Position Designator | 1 AND 2 AND 3 AND 7 AND 8 AND 9 |
| Style Designator | SPLIT |
| Material Document and Classification | MORGANITE INC GRADE EG8866S MFR REF SINGLE MATERIAL RESPONSE |
| Brush Shunt Length | 5.500 INCHES NOMINAL ALL SHUNTS IN |
| Contact Face Style | BEVELED |
| Width | 1.500 INCHES NOMINAL IN |
| Material | ELECTROGRAPHITIC |
| Terminal Type and Quantity | 2 TUBULAR W/HOLE |
| Thickness | 0.812 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 |
|---|---|
| 05-191-653-073 | Siemens Energy and Automation Inc (USA) |
| 12-871531-778-2-01 PRIMARY | Helwig Carbon Products Inc (USA) |
| Reference | Meaning |
|---|---|
| 05-191-653-073 | 5/9 Secondary reference U.S. Government activity |
NSN 5977-00-019-0732 is a Brush,electrical Contact, manufactured by Helwig Carbon Products Inc, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-019-0732 has 2 manufacturer part numbers on file: 05-191-653-073 (Siemens Energy and Automation Inc), 12-871531-778-2-01 (Helwig Carbon Products Inc).
Key specifications for 12-871531-778-2-01: Length: 3.000 INCHES NOMINAL IN; Body Style: RECTANGULAR; Top Style: BEVELED FRONT WITH LEFT AND RIGHT EDGE BEVELED; Shunt Position Designator: 1 AND 2 AND 3 AND 7 AND 8 AND 9. 12 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.