The Holder,electrical Contact Brush, cataloged under National Stock Number 5977-00-378-9205, 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 Kurz & Root Generator Company, Llc. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5977-00-378-9205 |
| Primary Part Number | 18-1103 |
| Item Name | Holder,electrical Contact Brush |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Kurz & Root Generator Company, Llc |
| Status | ACTIVE |
| Inside Length | 2.250 INCHES NOMINAL IN |
| Overall Diameter | 0.875 INCHES NOMINAL IN |
| Brush Quantity Accommodated Per Holder | 1 |
| Material | COPPER ALLOY BOX |
| 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 |
|---|---|
| 18-1103 PRIMARY | Kurz & Root Generator Company, Llc (USA) |
| 18-1103-0 PRIMARY | Kurz & Root Generator Company, Llc (USA) |
| 1103 PRIMARY | Kurz & Root Generator Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| MJH3-001-35 | 5/9 Secondary reference Mancraft Industries Inc |
| JH3-001-35 | 5/9 Secondary reference Hollingsworth John R Co |
NSN 5977-00-378-9205 is a Holder,electrical Contact Brush, manufactured by Kurz & Root Generator Company, Llc, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-378-9205 has 3 manufacturer part numbers on file: 18-1103 (Kurz & Root Generator Company, Llc), 18-1103-0 (Kurz & Root Generator Company, Llc), 1103 (Kurz & Root Generator Company, Llc).
2 possible matches (shared part number, not a government interchangeability claim): 6620-00-557-0363, 4820-01-353-1530. Verify interchangeability with system specifications before substitution.
Key specifications for 18-1103: Inside Length: 2.250 INCHES NOMINAL IN; Overall Diameter: 0.875 INCHES NOMINAL IN; Overall Length: 2.250 INCHES NOMINAL IN; Brush Quantity Accommodated Per Holder: 1. 4 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.