The Holder,electrical Contact Brush, cataloged under National Stock Number 5977-00-025-3453, 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 10 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. 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 | 5977-00-025-3453 |
| Primary Part Number | 5149A |
| 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 | 0.250 INCHES NOMINAL IN |
| Inside Length | 1.062 INCHES NOMINAL IN |
| Overall Diameter | 0.625 INCHES NOMINAL IN |
| Top Thread Location | INTERNAL |
| Thread Length | 0.281 INCHES NOMINAL IN |
| Mounting Facility | PRESS FIT |
| Inside Thickness | 0.250 INCHES NOMINAL IN |
| Material | COPPER ALLOY BOX |
| Thread Size and Series/type Designator | 0.438-20 UNF |
| 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 |
|---|---|
| 5149A PRIMARY | Magnetics Intl Inc (USA) |
NSN 5977-00-025-3453 is a Holder,electrical Contact Brush, manufactured by Magnetics Intl Inc, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-025-3453 has 1 manufacturer part number on file: 5149A (Magnetics Intl Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5355-00-651-7850, 2240-00-735-4504. Verify interchangeability with system specifications before substitution.
Key specifications for 5149A: Mounting Facility Quantity: 1; Inside Width: 0.250 INCHES NOMINAL IN; Inside Length: 1.062 INCHES NOMINAL IN; Overall Diameter: 0.625 INCHES NOMINAL IN. 10 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.