The Holder,electrical Contact Brush, cataloged under National Stock Number 5977-00-033-5760, 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 Ward Leonard Ct Llc. Government technical data includes 13 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-033-5760 |
| Primary Part Number | 4311A1A |
| Item Name | Holder,electrical Contact Brush |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Ward Leonard Ct Llc |
| Status | ACTIVE |
| Brush Spring Adjustability | NONADJUSTABLE |
| Mounting Facility Quantity | 2 |
| Terminal Quantity | 2 |
| Inside Width | 1.115 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN |
| Terminal Type | SCREW |
| Inside Length | 0.812 INCHES NOMINAL IN |
| Overall Thickness | 2.625 INCHES NOMINAL IN |
| Style Designator | RECTANGLE OFFSET |
| Brush Quantity Accommodated Per Holder | 1 |
| Brush Pressure Spring Type Accommodated | SPIRAL TORSION |
| Mounting Facility | THREADED HOLES |
| Inside Thickness | 0.438 INCHES MINIMUM AND 0.442 INCHES MAXIMUM IN |
| Material | COPPER ALLOY BOX |
| 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 |
|---|---|
| 4311A1A PRIMARY | Ward Leonard Ct Llc (USA) |
| Reference | Meaning |
|---|---|
| J9765ITEM1 | 5/1 Secondary reference Ward Leonard Ct Llc |
| 15A1166-2 | 5/1 Secondary reference Eaton Aerospace, Llc Dba Jackson South |
| 13327PC27 | 5/1 Secondary reference Ward Leonard Ct Llc |
| 90C10DITEM65 | 5/1 Secondary reference Eaton Aerospace, Llc Dba Jackson South |
NSN 5977-00-033-5760 is a Holder,electrical Contact Brush, manufactured by Ward Leonard Ct Llc, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-033-5760 has 1 manufacturer part number on file: 4311A1A (Ward Leonard Ct Llc).
Key specifications for 4311A1A: Brush Spring Adjustability: NONADJUSTABLE; Mounting Facility Quantity: 2; Terminal Quantity: 2; Inside Width: 1.115 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN. 13 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.