The Brush,electrical Contact, cataloged under National Stock Number 5977-01-105-5156, 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 Prestolite Electric Inc. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-01-105-5156 |
| Primary Part Number | 78544 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Prestolite Electric Inc |
| Status | ACTIVE |
| Length | 0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN |
| Largest Outside Diameter | 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| Body Style | CYLINDRICAL |
| Shunt Position Designator | 5 |
| Style Designator | ONE PIECE |
| Material Document and Classification | MORGANITE GRADE EG260 MFR REF SINGLE MATERIAL RESPONSE |
| Diameter | 0.303 INCHES MINIMUM AND 0.307 INCHES MAXIMUM IN |
| Spring Free Length | 2.380 INCHES NOMINAL IN |
| Pressure Spring Type and Quantity | 1 CYLINDRICAL |
| Brush Shunt Length | 1.830 INCHES MINIMUM AND 1.860 INCHES MAXIMUM SINGLE SHUNT IN |
| Contact Face Style | FLAT |
| Shunt Insulation Provision and Quantity | 1 UNINSULATED |
| Material | ELECTROGRAPHITIC |
| Terminal Type and Quantity | 1 PIN PLUG |
| 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 |
|---|---|
| 78544 PRIMARY | Prestolite Electric Inc (USA) |
| Reference | Meaning |
|---|---|
| A010 078544 | 5/9 Secondary reference Prestolite Electric Inc |
| 78544 | 5/9 Secondary reference Prestolite Electric Inc |
NSN 5977-01-105-5156 is a Brush,electrical Contact, manufactured by Prestolite Electric Inc, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-01-105-5156 has 1 manufacturer part number on file: 78544 (Prestolite Electric Inc).
Key specifications for 78544: Length: 0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN; Largest Outside Diameter: 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN; Body Style: CYLINDRICAL; Shunt Position Designator: 5. 14 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.