The Brush,electrical Contact, cataloged under National Stock Number 5977-00-228-7939, is classified within Federal Supply Class 5977 (Electrical Contact Brushes and Electrodes) of the Electrical and Electronic Equipment Components group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-228-7939 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Status | ACTIVE |
| Length | 1.250 INCHES NOMINAL IN |
| Body Style | RECTANGULAR COMMUTATOR |
| Style Designator | ONE PIECE |
| Material Document and Classification | CARBONE CARBON GR 2192 MFR REF SINGLE MATERIAL RESPONSE |
| Brush Shunt Length | 2.875 INCHES NOMINAL SINGLE SHUNT IN |
| Contact Face Style | FLAT |
| Shunt Insulation Provision and Quantity | 1 UNINSULATED |
| Width | 0.872 INCHES NOMINAL IN |
| Material | ELECTROGRAPHITIC |
| Terminal Type and Quantity | 1 STRAIGHT W/HOLE |
| Thickness | 0.242 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 |
| Reference | Meaning |
|---|---|
| 60515 | 3/9 Design control — primary reference Reliance Electric Industrial Co Master Div |
| 204001-18787-5 | 5/9 Secondary reference Reliance Electric Industrial Co Master Div |
NSN 5977-00-228-7939 is a Brush,electrical Contact, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
5 possible matches (shared part number, not a government interchangeability claim): 5895-00-682-8786, 5950-00-752-4808, 6150-01-138-4359. Verify interchangeability with system specifications before substitution.
Key specifications for 5977-00-228-7939: Length: 1.250 INCHES NOMINAL IN; Body Style: RECTANGULAR COMMUTATOR; Style Designator: ONE PIECE; Material Document and Classification: CARBONE CARBON GR 2192 MFR REF SINGLE MATERIAL RESPONSE. 11 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.