The Brush,electrical Contact, cataloged under National Stock Number 5977-00-549-0019, 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 Mersen Canada Dn Ltd. Government technical data includes 17 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-549-0019 |
| Primary Part Number | D202-240 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Mersen Canada Dn Ltd |
| Status | ACTIVE |
| Outer Edge to Slot Edge Distance | 0.219 INCHES NOMINAL IN |
| Length | 1.125 INCHES NOMINAL IN |
| Body Style | RECTANGULAR COMMUTATOR |
| Terminal Hole Diameter | 0.188 INCHES NOMINAL IN |
| Top Style | FLAT WITH RECTANGULAR SLOT |
| Shunt Position Designator | 11 |
| Style Designator | ONE PIECE |
| Material Document and Classification | CARBONE CARBON GRADE S-81 MFR REF SINGLE MATERIAL RESPONSE |
| Brush Shunt Length | 2.000 INCHES NOMINAL SINGLE SHUNT IN |
| Contact Face Style | FLAT |
| Shunt Insulation Provision and Quantity | 1 UNINSULATED |
| Slot Depth | 0.094 INCHES NOMINAL IN |
| Width | 0.625 INCHES NOMINAL IN |
| Material | ELECTROGRAPHITIC |
| Terminal Type and Quantity | 1 STRAIGHT W/HOLE |
| Slot Width | 0.313 INCHES NOMINAL IN |
| Thickness | 0.245 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 |
|---|---|
| D202-240 | Mersen Canada Dn Ltd (CAN) |
| Reference | Meaning |
|---|---|
| D202-240GRS81 | 5/9 Secondary reference Peerless-Winsmith, Inc. Dba Peerless Winsmith |
| C4926PC57 | 5/9 Secondary reference Peerless-Winsmith, Inc. Dba Peerless Winsmith |
| D202-240 | 5/9 Secondary reference Peerless-Winsmith, Inc. Dba Peerless Winsmith |
| NEMA PUB CB1 | 3/1 Design control — primary reference National Electrical Mfrs Assn Dba Nema |
| MILB003743 | 5/9 Secondary reference U.S. Government activity |
NSN 5977-00-549-0019 is a Brush,electrical Contact, manufactured by Mersen Canada Dn Ltd, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-549-0019 has 1 manufacturer part number on file: D202-240 (Mersen Canada Dn Ltd).
Key specifications for D202-240: Outer Edge to Slot Edge Distance: 0.219 INCHES NOMINAL IN; Length: 1.125 INCHES NOMINAL IN; Body Style: RECTANGULAR COMMUTATOR; Terminal Hole Diameter: 0.188 INCHES NOMINAL IN. 17 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.