The Brush,electrical Contact, cataloged under National Stock Number 5977-00-239-6509, 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 International Contact Technologies Corp. Government technical data includes 12 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-239-6509 |
| Primary Part Number | B416810 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | International Contact Technologies Corp |
| Status | ACTIVE |
| Length | 0.875 INCHES NOMINAL IN |
| Body Style | RECTANGULAR |
| Top Style | FLAT |
| Shunt Position Designator | 10 |
| Style Designator | ONE PIECE |
| Brush Shunt Length | 4.000 INCHES NOMINAL SINGLE SHUNT IN |
| Contact Face Style | FLAT |
| Shunt Insulation Provision and Quantity | 1 UNINSULATED |
| Width | 0.500 INCHES NOMINAL IN |
| Material | METAL GRAPHITE |
| Terminal Type and Quantity | 1 STRAIGHT W/HOLE |
| Thickness | 0.500 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 |
| Part Number | Manufacturer |
|---|---|
| B416810 PRIMARY | International Contact Technologies Corp (USA) |
| Reference | Meaning |
|---|---|
| B416810 | 5/9 Secondary reference American Telephone and Telegraph Co |
| B416810 | 5/9 Secondary reference At and T Corp |
| 416810 | 5/9 Secondary reference At and T Corp |
| 416810 | 5/9 Secondary reference American Telephone and Telegraph Co |
NSN 5977-00-239-6509 is a Brush,electrical Contact, manufactured by International Contact Technologies Corp, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-239-6509 has 1 manufacturer part number on file: B416810 (International Contact Technologies Corp).
1 possible match (shared part number, not a government interchangeability claim): 6615-00-398-0776. Verify interchangeability with system specifications before substitution.
Key specifications for B416810: Length: 0.875 INCHES NOMINAL IN; Body Style: RECTANGULAR; Top Style: FLAT; Shunt Position Designator: 10. 12 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.