The Brush,electrical Contact, cataloged under National Stock Number 5977-01-143-1329, 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 Kollmorgen Corp. Government technical data includes 15 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-01-143-1329 |
| Primary Part Number | A27737 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Kollmorgen Corp |
| Status | ACTIVE |
| Length | 1.070 INCHES NOMINAL IN |
| Terminal Diameter | 0.562 INCHES NOMINAL IN |
| Largest Outside Diameter | 0.360 INCHES MAXIMUM IN |
| Body Style | RECTANGULAR COMMUTATOR |
| Shunt Position Designator | 5 |
| Style Designator | ONE PIECE |
| Material Document and Classification | HELWIG CARBON PRODUCTS INC GRADE E-27 MFR REF SINGLE MATERIAL RESPONSE |
| Pressure Spring Type and Quantity | 1 CYLINDRICAL |
| Brush Shunt Length | 1.410 INCHES NOMINAL SINGLE SHUNT IN |
| Contact Face Style | FLAT |
| Shunt Insulation Provision and Quantity | 1 UNINSULATED |
| Width | 0.438 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| Material | ELECTROGRAPHITIC |
| Terminal Type and Quantity | 1 ROUND CAP |
| Thickness | 0.252 INCHES MINIMUM AND 0.254 INCHES MAXIMUM 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 |
|---|---|
| A27737 PRIMARY | Kollmorgen Corp (USA) |
NSN 5977-01-143-1329 is a Brush,electrical Contact, manufactured by Kollmorgen Corp, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-01-143-1329 has 1 manufacturer part number on file: A27737 (Kollmorgen Corp).
Key specifications for A27737: Length: 1.070 INCHES NOMINAL IN; Terminal Diameter: 0.562 INCHES NOMINAL IN; Largest Outside Diameter: 0.360 INCHES MAXIMUM IN; Body Style: RECTANGULAR COMMUTATOR. 15 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.