The Brush,electrical Contact, cataloged under National Stock Number 5977-00-280-4392, is classified within Federal Supply Class 5977 (Electrical Contact Brushes and Electrodes) of the Electrical and Electronic Equipment Components group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5977-00-280-4392 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Status | ACTIVE |
| Length | 1.250 INCHES NOMINAL IN |
| Peripheral Speed | 6000 FEET PER MINUTE FT |
| Body Style | RECTANGULAR COMMUTATOR |
| Radius | 1.563 INCHES NOMINAL IN |
| Terminal Hole Diameter | 0.219 INCHES NOMINAL IN |
| Top Style | BEVELED FRONT WITH LEFT SHOULDER |
| Shunt Position Designator | 2 |
| Style Designator | ONE PIECE |
| Material Document and Classification | NATIONAL GRADE SA25 MFR REF SINGLE MATERIAL RESPONSE |
| Angle | 40.0 DEGREES NOMINAL |
| Brush Shunt Length | 2.250 INCHES NOMINAL SINGLE SHUNT IN |
| Contact Face Style | CONCAVE ON BEVEL |
| Shunt Insulation Provision and Quantity | 1 UNINSULATED |
| Width | 0.875 INCHES NOMINAL IN |
| Bevel Angle | 30.0 DEGREES NOMINAL |
| Material | ELECTROGRAPHITIC |
| Terminal Type and Quantity | 1 STRAIGHT W/HOLE |
| Thickness | 0.375 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 | X |
| Reference | Meaning |
|---|---|
| RC12-2804 | 5/9 Secondary reference Ucar Carbon Co Inc |
| 165083 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
| RC12-2804 | 5/9 Secondary reference National Electrical Carbon Products, Inc. Div Electrical |
| 19955PC102552 | 5/9 Secondary reference Eastern Air Devices Inc Dba Ead Motors |
| 61003924 | 3/9 Design control — primary reference National Electrical Carbon Products, Inc. Div Electrical |
NSN 5977-00-280-4392 is a Brush,electrical Contact, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5935-00-799-5576, 5998-01-172-0832. Verify interchangeability with system specifications before substitution.
Key specifications for 5977-00-280-4392: Length: 1.250 INCHES NOMINAL IN; Peripheral Speed: 6000 FEET PER MINUTE FT; Body Style: RECTANGULAR COMMUTATOR; Radius: 1.563 INCHES NOMINAL IN. 18 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.