The Brush,electrical Contact, cataloged under National Stock Number 5977-00-296-1069, 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 Ballantyne of Omaha Inc.. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-296-1069 |
| Primary Part Number | A-72540 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Ballantyne of Omaha Inc. |
| Status | ACTIVE |
| Length | 0.562 INCHES NOMINAL IN |
| Terminal Diameter | 0.246 INCHES NOMINAL IN |
| Largest Outside Diameter | 0.246 INCHES NOMINAL IN |
| Body Style | RECTANGULAR COMMUTATOR |
| Radius | 0.359 INCHES NOMINAL IN |
| Shunt Position Designator | 5 |
| Style Designator | ONE PIECE |
| Material Document and Classification | PURE CARBON CO INC,GRADE 1010J MFR REF SINGLE MATERIAL RESPONSE |
| Spring Free Length | 1.125 INCHES NOMINAL IN |
| Pressure Spring Type and Quantity | 1 CYLINDRICAL |
| Brush Shunt Length | 1.125 INCHES NOMINAL SINGLE SHUNT IN |
| Contact Face Style | CONCAVE |
| Shunt Insulation Provision and Quantity | 1 UNINSULATED |
| Width | 0.281 INCHES NOMINAL IN |
| Material | METAL GRAPHITE |
| Terminal Type and Quantity | 1 ROUND CAP |
| Thickness | 0.188 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 |
|---|---|
| A-72540 PRIMARY | Ballantyne of Omaha Inc. (USA) |
| Reference | Meaning |
|---|---|
| D55390-12 | 5/9 Secondary reference Robbins and Myers Inc |
NSN 5977-00-296-1069 is a Brush,electrical Contact, manufactured by Ballantyne of Omaha Inc., classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-296-1069 has 1 manufacturer part number on file: A-72540 (Ballantyne of Omaha Inc.).
Key specifications for A-72540: Length: 0.562 INCHES NOMINAL IN; Terminal Diameter: 0.246 INCHES NOMINAL IN; Largest Outside Diameter: 0.246 INCHES NOMINAL IN; Body Style: RECTANGULAR COMMUTATOR. 17 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.