The Brush,electrical Contact, cataloged under National Stock Number 5977-00-644-2918, 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 Naval Inventory Control Point Mechanicsburg. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-644-2918 |
| Primary Part Number | 5977-644-2918 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Length | 0.906 INCHES NOMINAL IN |
| Terminal Diameter | 0.750 INCHES NOMINAL IN |
| Largest Outside Diameter | 0.375 INCHES NOMINAL IN |
| Body Style | RECTANGULAR SLIP RING |
| Radius | 1.031 INCHES NOMINAL IN |
| Shunt Position Designator | 5 |
| Style Designator | ONE PIECE |
| Material Document and Classification | SUPERIOR CARBON PRODUCTS INC,GRADE 469 MFR REF SINGLE MATERIAL RESPONSE |
| Spring Free Length | 1.625 INCHES NOMINAL IN |
| Pressure Spring Type and Quantity | 1 CYLINDRICAL |
| Brush Shunt Length | 1.625 INCHES NOMINAL SINGLE SHUNT IN |
| Contact Face Style | CONCAVE |
| Shunt Insulation Provision and Quantity | 1 UNINSULATED |
| Width | 0.427 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN |
| Material | GRAPHITE |
| Terminal Type and Quantity | 1 ROUND CAP |
| Thickness | 0.427 INCHES MINIMUM AND 0.431 INCHES MAXIMUM 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 |
|---|---|
| 5977-644-2918 PRIMARY | Naval Inventory Control Point Mechanicsburg (USA) |
| D5759 PRIMARY | Magnetics Intl Inc (USA) |
NSN 5977-00-644-2918 is a Brush,electrical Contact, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-644-2918 has 2 manufacturer part numbers on file: 5977-644-2918 (Naval Inventory Control Point Mechanicsburg), D5759 (Magnetics Intl Inc).
Key specifications for 5977-644-2918: Length: 0.906 INCHES NOMINAL IN; Terminal Diameter: 0.750 INCHES NOMINAL IN; Largest Outside Diameter: 0.375 INCHES NOMINAL IN; Body Style: RECTANGULAR SLIP RING. 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.