The Brush,electrical Contact, cataloged under National Stock Number 5977-01-199-9032, 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 Kollmorgen Corp. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 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 | 5977-01-199-9032 |
| Primary Part Number | A-42026 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Kollmorgen Corp |
| Status | ACTIVE |
| Length | 0.500 INCHES NOMINAL IN |
| Terminal Diameter | 0.310 INCHES NOMINAL IN |
| Largest Outside Diameter | 0.210 INCHES NOMINAL IN |
| Body Style | RECTANGULAR |
| Shunt Position Designator | 5 |
| Style Designator | ONE PIECE |
| Material Document and Classification | CARBONE GRADE 417 MFR REF SINGLE MATERIAL RESPONSE |
| Spring Free Length | 1.250 INCHES NOMINAL IN |
| Pressure Spring Type and Quantity | 1 CYLINDRICAL |
| Brush Shunt Length | 0.435 INCHES NOMINAL SINGLE SHUNT IN |
| Contact Face Style | FLAT |
| Shunt Insulation Provision and Quantity | 1 UNINSULATED |
| Width | 0.185 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN |
| Material | ELECTROGRAPHITIC |
| Terminal Type and Quantity | 1 ROUND CAP |
| Thickness | 0.185 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5977-01-199-9032 is a Brush,electrical Contact, manufactured by Kollmorgen Corp, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-01-199-9032 has 2 manufacturer part numbers on file: 42026 (Kollmorgen Corp), A-42026 (Kollmorgen Corp).
3 possible matches (shared part number, not a government interchangeability claim): 5961-01-267-6875, 3040-01-522-1776, 4320-01-583-7947. Verify interchangeability with system specifications before substitution.
Key specifications for A-42026: Length: 0.500 INCHES NOMINAL IN; Terminal Diameter: 0.310 INCHES NOMINAL IN; Largest Outside Diameter: 0.210 INCHES NOMINAL IN; Body Style: RECTANGULAR. 16 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.