The Brush,electrical Contact, cataloged under National Stock Number 5977-00-238-9147, 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 Thermo Electron Corporation Dba Iec Centrifuge Div Laboratory Equipment Divsion. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-238-9147 |
| Primary Part Number | 1780 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Thermo Electron Corporation Dba Iec Centrifuge Div Laboratory Equipment Divsion |
| Status | ACTIVE |
| Length | 0.875 INCHES NOMINAL IN |
| Largest Outside Diameter | 0.248 INCHES NOMINAL IN |
| Body Style | RECTANGULAR COMMUTATOR |
| Radius | 0.625 INCHES NOMINAL IN |
| Top Style | CYLINDRICAL HEAD |
| Criticality Code Justification | MATT AND MDCL |
| Style Designator | ONE PIECE |
| Material Document and Classification | KIRKWOOK CARBON CO GR DD MFR REF SINGLE MATERIAL RESPONSE |
| Spring Free Length | 2.188 INCHES NOMINAL IN |
| Pressure Spring Type and Quantity | 1 CYLINDRICAL WITH REDUCED END |
| Head Length | 0.094 INCHES NOMINAL IN |
| Contact Face Style | CONCAVE |
| Width | 0.248 INCHES NOMINAL IN |
| Material | GRAPHITE |
| Thickness | 0.248 INCHES NOMINAL IN |
| Head Diameter | 0.184 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 1780 PRIMARY | Thermo Electron Corporation Dba Iec Centrifuge Div Laboratory Equipment Divsion (USA) |
| Reference | Meaning |
|---|---|
| B414PC1780 | 5/9 Secondary reference Thermo Electron Corporation Dba Iec Centrifuge Div Laboratory Equipment Divsion |
| PX342DD | 3/2 Design control — primary reference U.S. Government activity |
NSN 5977-00-238-9147 is a Brush,electrical Contact, manufactured by Thermo Electron Corporation Dba Iec Centrifuge Div Laboratory Equipment Divsion, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-238-9147 has 1 manufacturer part number on file: 1780 (Thermo Electron Corporation Dba Iec Centrifuge Div Laboratory Equipment Divsion).
Key specifications for 1780: Length: 0.875 INCHES NOMINAL IN; Largest Outside Diameter: 0.248 INCHES NOMINAL IN; Body Style: RECTANGULAR COMMUTATOR; Radius: 0.625 INCHES NOMINAL IN. 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.