The Holder,electrical Contact Brush, cataloged under National Stock Number 5977-01-244-2508, 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 Hobart Bros Co. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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 | 5977-01-244-2508 |
| Primary Part Number | 401879 |
| Item Name | Holder,electrical Contact Brush |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Hobart Bros Co |
| Status | ACTIVE |
| Mounting Facility Quantity | 1 |
| Inside Width | 0.437 INCHES NOMINAL IN |
| Inside Length | 1.230 INCHES NOMINAL IN |
| Overall Diameter | 0.810 INCHES NOMINAL IN |
| Top Thread Location | EXTERNAL |
| Brush Quantity Accommodated Per Holder | 1 |
| Mounting Facility | PRESS FIT |
| Inside Thickness | 0.251 INCHES NOMINAL IN |
| Thread Size and Series/type Designator | 0.625-18 UNF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5977-01-244-2508 is a Holder,electrical Contact Brush, manufactured by Hobart Bros Co, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-01-244-2508 has 3 manufacturer part numbers on file: 11021700 (Combat Capabilities Development Command Armaments Center Dba Us Army Combat Capabilities Development Command Armaments Center), 401879 (Hobart Bros Co), 553 (Phoenix Electric Mfg Co).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-345-0801. Verify interchangeability with system specifications before substitution.
Key specifications for 401879: Mounting Facility Quantity: 1; Inside Width: 0.437 INCHES NOMINAL IN; Inside Length: 1.230 INCHES NOMINAL IN; Overall Diameter: 0.810 INCHES NOMINAL IN. 9 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.