The Tap,thread Cutting, cataloged under National Stock Number 5136-01-351-2050, is classified within Federal Supply Class 5136 (Taps, Dies, and Collets; Hand and Machine) of the Hand Tools group. The manufacturer of record is Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5136-01-351-2050 |
| Primary Part Number | 8050688 |
| Item Name | Tap,thread Cutting |
| FSC / FSG | 5136 / 51 — Taps, Dies, and Collets; Hand and Machine |
| Manufacturer | Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc |
| Status | ACTIVE |
| Shank Diameter | 1.430 INCHES NOMINAL IN |
| Width Across Flats | 1.072 INCHES NOMINAL IN |
| Length | 1.250 INCHES NOMINAL SQUARE END IN |
| Thread Length | 2.500 INCHES NOMINAL IN |
| Flute Quantity | 6 |
| Thread Size and Series/type Designator | 1.750-12 UN |
| Starting Chamfer Type | PLUG |
| 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 |
|---|---|
| 8050688 PRIMARY | Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc (USA) |
| Reference | Meaning |
|---|---|
| 8050688 | 5/9 Secondary reference General Motors Corp Electro-Motive Div |
NSN 5136-01-351-2050 is a Tap,thread Cutting, manufactured by Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc, classified under FSC 5136, Taps, Dies, and Collets; Hand and Machine. Status: active.
NSN 5136-01-351-2050 has 1 manufacturer part number on file: 8050688 (Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc).
Key specifications for 8050688: Shank Diameter: 1.430 INCHES NOMINAL IN; Width Across Flats: 1.072 INCHES NOMINAL IN; Length: 1.250 INCHES NOMINAL SQUARE END IN; Thread Length: 2.500 INCHES NOMINAL IN. 7 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.