The Brush,electrical Contact, cataloged under National Stock Number 5977-00-935-6945, 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 Kalmar AC Inc. Government technical data includes 15 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-935-6945 |
| Primary Part Number | 74997858 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Kalmar AC Inc |
| Status | ACTIVE |
| Length | 1.344 INCHES NOMINAL IN |
| Body Style | RECTANGULAR COMMUTATOR |
| Terminal Hole Diameter | 0.188 INCHES NOMINAL IN |
| Top Style | BEVELED FRONT |
| Shunt Position Designator | 1 AND 7 |
| Clip Type | NEMA HAMMER TYPE ANGULAR A-EXTENDED |
| Style Designator | PAIRED |
| Clip Length | 0.656 INCHES NOMINAL IN |
| Brush Shunt Length | 2.000 INCHES NOMINAL ALL SHUNTS IN |
| Contact Face Style | BEVELED |
| Shunt Insulation Provision and Quantity | 2 UNINSULATED |
| Width | 1.219 INCHES NOMINAL IN |
| Material | CARBON |
| Terminal Type and Quantity | 1 BENT W/HOLE |
| 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 |
|---|---|
| 74997858 PRIMARY | Kalmar AC Inc (USA) |
| Reference | Meaning |
|---|---|
| CL788 | 5/9 Secondary reference Intrupa Mfg Co |
| 4997858-8 | 5/9 Secondary reference Kalmar AC Inc |
| 74997858 | 5/9 Secondary reference U.S. Government activity |
| 53-620-390-003 | 5/9 Secondary reference U.S. Government activity |
| 889788 | 5/9 Secondary reference Clark Equipment Co |
NSN 5977-00-935-6945 is a Brush,electrical Contact, manufactured by Kalmar AC Inc, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-935-6945 has 1 manufacturer part number on file: 74997858 (Kalmar AC Inc).
Key specifications for 74997858: Length: 1.344 INCHES NOMINAL IN; Body Style: RECTANGULAR COMMUTATOR; Terminal Hole Diameter: 0.188 INCHES NOMINAL IN; Top Style: BEVELED FRONT. 15 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.