The Holder,electrical Contact Brush, cataloged under National Stock Number 5977-00-038-3563, 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 Magnetics Intl Inc. 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-038-3563 |
| Primary Part Number | D-5731 |
| Item Name | Holder,electrical Contact Brush |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Magnetics Intl Inc |
| Status | ACTIVE |
| Mounting Facility Quantity | 1 |
| Inside Width | 0.253 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Inside Length | 2.375 INCHES NOMINAL IN |
| Overall Diameter | 1.312 INCHES NOMINAL IN |
| Top Thread Location | INTERNAL |
| Thread Length | 0.500 INCHES NOMINAL IN |
| Style Designator | ROUND |
| Brush Quantity Accommodated Per Holder | 1 |
| Mounting Facility | PRESS FIT |
| Inside Thickness | 0.630 INCHES MINIMUM AND 0.633 INCHES MAXIMUM IN |
| Material | COPPER ALLOY BOX |
| Material | PLASTIC BOX SUPPORTING |
| Thread Size and Series/type Designator | 1.125-16 UN |
| 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 |
|---|---|
| D-5731 PRIMARY | Magnetics Intl Inc (USA) |
NSN 5977-00-038-3563 is a Holder,electrical Contact Brush, manufactured by Magnetics Intl Inc, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-038-3563 has 1 manufacturer part number on file: D-5731 (Magnetics Intl Inc).
1 possible match (shared part number, not a government interchangeability claim): 3120-00-661-8006. Verify interchangeability with system specifications before substitution.
Key specifications for D-5731: Mounting Facility Quantity: 1; Inside Width: 0.253 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN; Inside Length: 2.375 INCHES NOMINAL IN; Overall Diameter: 1.312 INCHES NOMINAL 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.