The Ring,electrical Contact Brush Ho, cataloged under National Stock Number 5977-01-128-9866, 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 5 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. 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 | 5977-01-128-9866 |
| Primary Part Number | 41298 |
| Item Name | Ring,electrical Contact Brush Ho |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Kollmorgen Corp |
| Status | ACTIVE |
| Overall Diameter | 1.105 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN |
| Overall Thickness | 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-A-225/6, ALLOY 2024, T4 FED SPEC SINGLE MATERIAL RESPONSE |
| Shape | CIRCULAR |
| Material | ALUMINUM ALLOY 2024 |
| 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 |
|---|---|
| 41298 PRIMARY | Kollmorgen Corp (USA) |
NSN 5977-01-128-9866 is a Ring,electrical Contact Brush Ho, manufactured by Kollmorgen Corp, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-01-128-9866 has 1 manufacturer part number on file: 41298 (Kollmorgen Corp).
3 possible matches (shared part number, not a government interchangeability claim): 5120-01-398-9252, 6730-01-436-2792, 5330-01-665-5337. Verify interchangeability with system specifications before substitution.
Key specifications for 41298: Overall Diameter: 1.105 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN; Overall Thickness: 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN; Material Document and Classification: QQ-A-225/6, ALLOY 2024, T4 FED SPEC SINGLE MATERIAL RESPONSE; Shape: CIRCULAR. 5 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.