The Brush,electrical Contact, cataloged under National Stock Number 5977-00-239-7098, is classified within Federal Supply Class 5977 (Electrical Contact Brushes and Electrodes) of the Electrical and Electronic Equipment Components group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 18 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-239-7098 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Status | ACTIVE |
| Length | 0.750 INCHES NOMINAL IN |
| Peripheral Speed | 5000 FEET PER MINUTE FT |
| Terminal Diameter | 0.312 INCHES NOMINAL IN |
| Largest Outside Diameter | 0.250 INCHES NOMINAL IN |
| Body Style | RECTANGULAR COMMUTATOR |
| Radius | 0.469 INCHES NOMINAL IN |
| Top Style | CYLINDRICAL HEAD |
| Shunt Position Designator | 5 |
| Style Designator | ONE PIECE |
| Material Document and Classification | PURE CARBON CO INC,GR G32 MFR REF SINGLE MATERIAL RESPONSE |
| Spring Free Length | 2.063 INCHES NOMINAL IN |
| Pressure Spring Type and Quantity | 1 CYLINDRICAL WITH REDUCED END |
| Head Length | 0.094 INCHES NOMINAL IN |
| Brush Shunt Length | 1.188 INCHES NOMINAL SINGLE SHUNT IN |
| Contact Face Style | CONCAVE |
| Shunt Insulation Provision and Quantity | 1 UNINSULATED |
| Width | 0.249 INCHES NOMINAL IN |
| Material | GRAPHITE |
| Terminal Type and Quantity | 1 ROUND CAP |
| Thickness | 0.249 INCHES NOMINAL IN |
| Head Diameter | 0.171 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 |
|---|---|
| AAC20803-3ITEM3 | 5/9 Secondary reference U.S. Government activity |
| SPN43987ABRSH | 5/9 Secondary reference U.S. Government activity |
| 475-3802-70393ITEM3 | 5/2 Secondary reference U.S. Government activity |
| AAC20641-4ITEM6 | 5/9 Secondary reference U.S. Government activity |
| 285-38-307ITEM6 | 5/2 Secondary reference U.S. Government activity |
| 487-6201-722945ALT7ITEM1 | 5/2 Secondary reference U.S. Government activity |
| AAC20642-4ITEM6 | 5/9 Secondary reference U.S. Government activity |
| P549 | 5/9 Secondary reference U.S. Government activity |
| 35502PC8-9 | 5/9 Secondary reference U.S. Government activity |
| 285-38-306ITEM6 | 5/2 Secondary reference U.S. Government activity |
| AAC20686-1ITEM6 | 5/9 Secondary reference U.S. Government activity |
| 381-3802-68064ITEM6 | 5/2 Secondary reference U.S. Government activity |
| 381-3802-68063ITEM6 | 5/2 Secondary reference U.S. Government activity |
| 475-3802-70392ITEM3 | 5/2 Secondary reference U.S. Government activity |
| 7124-487ITEM1 | 5/2 Secondary reference U.S. Government activity |
| AAC20804-2ITEM3 | 5/9 Secondary reference U.S. Government activity |
| AAC20687-1ITEM6 | 5/9 Secondary reference U.S. Government activity |
| BR1720 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5977-00-239-7098 is a Brush,electrical Contact, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
Key specifications for 5977-00-239-7098: Length: 0.750 INCHES NOMINAL IN; Peripheral Speed: 5000 FEET PER MINUTE FT; Terminal Diameter: 0.312 INCHES NOMINAL IN; Largest Outside Diameter: 0.250 INCHES NOMINAL IN. 21 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.