The Brush,electrical Contact, cataloged under National Stock Number 5977-01-043-8766, 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 Hansome Energy Systems Inc. Government technical data includes 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-01-043-8766 |
| Primary Part Number | ESB011-1 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Hansome Energy Systems Inc |
| Status | ACTIVE |
| Length | 1.875 INCHES NOMINAL IN |
| Body Style | RECTANGULAR COMMUTATOR |
| Terminal Slot Width | 0.188 INCHES NOMINAL IN |
| Top Style | BEVELED FRONT |
| Shunt Position Designator | 8 |
| Style Designator | ONE PIECE |
| Material Document and Classification | NATIONAL GRADE SA-45 MFR REF SINGLE MATERIAL RESPONSE |
| Angle | 30.0 DEGREES NOMINAL |
| Brush Shunt Length | 3.000 INCHES NOMINAL SINGLE SHUNT IN |
| Contact Face Style | BEVELED |
| Shunt Insulation Provision and Quantity | 1 UNINSULATED |
| Width | 1.250 INCHES NOMINAL IN |
| Bevel Angle | 30.0 DEGREES NOMINAL |
| Material | ELECTROGRAPHITIC |
| Terminal Type and Quantity | 1 STRAIGHT W/SLOT |
| Thickness | 0.375 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| ESB011-1 PRIMARY | Hansome Energy Systems Inc (USA) |
NSN 5977-01-043-8766 is a Brush,electrical Contact, manufactured by Hansome Energy Systems Inc, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-01-043-8766 has 1 manufacturer part number on file: ESB011-1 (Hansome Energy Systems Inc).
Key specifications for ESB011-1: Length: 1.875 INCHES NOMINAL IN; Body Style: RECTANGULAR COMMUTATOR; Terminal Slot Width: 0.188 INCHES NOMINAL IN; Top Style: BEVELED FRONT. 16 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.
NSN 5977-01-043-8766 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.