The Brush,electrical Contact, cataloged under National Stock Number 5977-00-998-7693, 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 Mersen Usa Ptt Corp Dba Mersen Usa - Salem Branch Div Mersen Usa Bn Corp. Government technical data includes 13 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-998-7693 |
| Primary Part Number | 6-861-2 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Mersen Usa Ptt Corp Dba Mersen Usa - Salem Branch Div Mersen Usa Bn Corp |
| Status | ACTIVE |
| Length | 0.810 INCHES NOMINAL IN |
| Body Style | RECTANGULAR COMMUTATOR |
| Radius | 1.240 INCHES MINIMUM AND 1.310 INCHES MAXIMUM IN |
| Shunt Position Designator | 5 |
| Style Designator | ONE PIECE |
| Pressure Spring Type and Quantity | 1 CYLINDRICAL |
| Brush Shunt Length | 2.750 INCHES MINIMUM AND 3.380 INCHES MAXIMUM SINGLE SHUNT IN |
| Contact Face Style | CONCAVE |
| Shunt Insulation Provision and Quantity | 1 UNINSULATED |
| Width | 0.500 INCHES NOMINAL IN |
| Material | CARBON |
| Terminal Type and Quantity | 1 TWO-PIECE NESTING EYELET CAP |
| Thickness | 0.500 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 |
|---|---|
| 6-861-2 PRIMARY | Mersen Usa Ptt Corp Dba Mersen Usa - Salem Branch Div Mersen Usa Bn Corp (USA) |
| Reference | Meaning |
|---|---|
| 8-861-2 | 5/9 Secondary reference Mersen Usa Ptt Corp Dba Mersen Usa - Salem Branch Div Mersen Usa Bn Corp |
| 6-861-2 | 5/9 Secondary reference Carbone Lorraine North America Corporation Div Carbone of America - Carbon Brush Division Use CAGE Code 71310 for Catalo |
| 625A600AAG1 | 5/9 Secondary reference General Electric Co Outdoor Breaker Business Section |
NSN 5977-00-998-7693 is a Brush,electrical Contact, manufactured by Mersen Usa Ptt Corp Dba Mersen Usa - Salem Branch Div Mersen Usa Bn Corp, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-998-7693 has 1 manufacturer part number on file: 6-861-2 (Mersen Usa Ptt Corp Dba Mersen Usa - Salem Branch Div Mersen Usa Bn Corp).
1 possible match (shared part number, not a government interchangeability claim): 6730-01-633-5089. Verify interchangeability with system specifications before substitution.
Key specifications for 6-861-2: Length: 0.810 INCHES NOMINAL IN; Body Style: RECTANGULAR COMMUTATOR; Radius: 1.240 INCHES MINIMUM AND 1.310 INCHES MAXIMUM IN; Shunt Position Designator: 5. 13 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.