The Brush,electrical Contact, cataloged under National Stock Number 5977-00-005-7884, is classified within Federal Supply Class 5977 (Electrical Contact Brushes and Electrodes) of the Electrical and Electronic Equipment Components group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-005-7884 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Status | ACTIVE |
| Length | 1.500 INCHES NOMINAL IN |
| Body Style | RECTANGULAR COMMUTATOR |
| Radius | 1.656 INCHES NOMINAL IN |
| Terminal Slot Width | 0.188 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN |
| Top Style | BEVELED FRONT |
| Shunt Position Designator | 2 |
| Style Designator | ONE PIECE |
| Material Document and Classification | HELWIG CARBON PRODUCTS INC GRADE E-41 MFR REF SINGLE MATERIAL RESPONSE |
| Angle | 30.0 DEGREES NOMINAL |
| Brush Shunt Length | 2.750 INCHES MINIMUM AND 3.000 INCHES MAXIMUM SINGLE SHUNT IN |
| Contact Face Style | CONCAVE ON BEVEL |
| Width | 0.993 INCHES MINIMUM AND 0.998 INCHES MAXIMUM IN |
| Bevel Angle | 109.0 DEGREES NOMINAL |
| Material | ELECTROGRAPHITIC |
| Terminal Type and Quantity | 1 STRAIGHT W/SLOT |
| Thickness | 0.369 INCHES MINIMUM AND 0.373 INCHES MAXIMUM 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 |
|---|---|
| B10970-1 | 3/9 Design control — primary reference Emerson Electric Co Emerson Industrial Controls Div DC Motor Plant P O Box 4147 St Louis Mo 63136-0747 |
NSN 5977-00-005-7884 is a Brush,electrical Contact, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
Key specifications for 5977-00-005-7884: Length: 1.500 INCHES NOMINAL IN; Body Style: RECTANGULAR COMMUTATOR; Radius: 1.656 INCHES NOMINAL IN; Terminal Slot Width: 0.188 INCHES MINIMUM AND 0.198 INCHES MAXIMUM 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.