The Ring,electrical Contact Brush Ho, cataloged under National Stock Number 5977-00-503-4332, 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 Honeywell International, Inc Div Aerospace-Tucson. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-503-4332 |
| Primary Part Number | 1320010 |
| Item Name | Ring,electrical Contact Brush Ho |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Honeywell International, Inc Div Aerospace-Tucson |
| Status | ACTIVE |
| Overall Diameter | 4.436 INCHES NOMINAL IN |
| Overall Thickness | 0.250 INCHES NOMINAL IN |
| Shape | CIRCULAR |
| Mounting Configuration | FOUR 0.187 IN. DIA MTG HOLES EQUALLY SPACED ON 4IN. DIA IN |
| Material | PLASTIC |
| Usage Design | USED TO POSITION AND ALIGN BRUSH HOLDERS |
| 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 |
|---|---|
| 1320010 PRIMARY | Honeywell International, Inc Div Aerospace-Tucson (USA) |
| Reference | Meaning |
|---|---|
| 1320010 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5977-00-503-4332 is a Ring,electrical Contact Brush Ho, manufactured by Honeywell International, Inc Div Aerospace-Tucson, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-503-4332 has 1 manufacturer part number on file: 1320010 (Honeywell International, Inc Div Aerospace-Tucson).
2 possible matches (shared part number, not a government interchangeability claim): 6145-01-191-1479, 6515-01-486-5609. Verify interchangeability with system specifications before substitution.
Key specifications for 1320010: Overall Diameter: 4.436 INCHES NOMINAL IN; Overall Thickness: 0.250 INCHES NOMINAL IN; Shape: CIRCULAR; Mounting Configuration: FOUR 0.187 IN. DIA MTG HOLES EQUALLY SPACED ON 4IN. DIA IN. 6 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.