The Ring,electrical Contact Brush Ho, cataloged under National Stock Number 5977-00-033-6539, 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 Westinghouse Electric Corp. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5977-00-033-6539 |
| Primary Part Number | 1555417 |
| Item Name | Ring,electrical Contact Brush Ho |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Overall Diameter | 8.000 INCHES NOMINAL IN |
| Overall Thickness | 3.750 INCHES NOMINAL IN |
| Mounting Configuration | FOUR SLOTS 11/32 IN. W BY 1-7/32 IN. LG SPACED 90 DEG APART ON A 7 IN. DIA BOLT CIRCLE IN |
| Material | COTTON AND PLASTIC MELAMINE |
| Usage Design | USED TO RETAIN BRUSHOLDERS |
| 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 |
|---|---|
| 1555417 | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| 1555417 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5977-00-033-6539 is a Ring,electrical Contact Brush Ho, manufactured by Westinghouse Electric Corp, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-033-6539 has 1 manufacturer part number on file: 1555417 (Westinghouse Electric Corp).
Key specifications for 1555417: Overall Diameter: 8.000 INCHES NOMINAL IN; Overall Thickness: 3.750 INCHES NOMINAL IN; Mounting Configuration: FOUR SLOTS 11/32 IN. W BY 1-7/32 IN. LG SPACED 90 DEG APART ON A 7 IN. DIA BOLT CIRCLE IN; Material: COTTON AND PLASTIC MELAMINE. 5 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.