The Holder,electrical Contact Brush, cataloged under National Stock Number 5977-00-337-7831, 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 Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 3 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 | 5977-00-337-7831 |
| Primary Part Number | 321026 |
| Item Name | Holder,electrical Contact Brush |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| Mounting Facility Quantity | 1 |
| Brush Quantity Accommodated Per Holder | 1 |
| Mounting Facility | PRESS FIT |
| 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 |
|---|---|
| 321026 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
NSN 5977-00-337-7831 is a Holder,electrical Contact Brush, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-337-7831 has 1 manufacturer part number on file: 321026 (Lockheed Martin Corporation Div Rms - Mitchel Field).
2 possible matches (shared part number, not a government interchangeability claim): 5940-00-502-8292, 5940-01-626-1646. Verify interchangeability with system specifications before substitution.
Key specifications for 321026: Mounting Facility Quantity: 1; Brush Quantity Accommodated Per Holder: 1; Mounting Facility: PRESS FIT. 3 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.