The Tap,thread Cutting, cataloged under National Stock Number 5136-00-134-7744, is classified within Federal Supply Class 5136 (Taps, Dies, and Collets; Hand and Machine) of the Hand Tools group. The manufacturer of record is Stanley Engineered Fastening Llc. Government technical data includes 13 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5136-00-134-7744 |
| Primary Part Number | 2CPA |
| Item Name | Tap,thread Cutting |
| FSC / FSG | 5136 / 51 — Taps, Dies, and Collets; Hand and Machine |
| Manufacturer | Stanley Engineered Fastening Llc |
| Status | ACTIVE |
| Shank Diameter | 0.220 INCHES MAXIMUM IN |
| Width Across Flats | 0.165 INCHES NOMINAL IN |
| Length | 0.281 INCHES NOMINAL SQUARE END IN |
| Thread Structure | REGULAR |
| Thread Length | 0.938 INCHES NOMINAL IN |
| Style Designator | STRAIGHT FLUTE |
| Thread Pitch Diameters | +0.1853 TO 0.1858 INCHES IN |
| Departure From Cited Designator | AS MODIFIED BY THREAD PITCH DIAMETERS |
| Nondefinitive Spec/std Data | 1 TYPE AND 1 CLASS |
| Flute Quantity | 3 |
| Material | STEEL OVERALL |
| Thread Size and Series/type Designator | 0.164-32 STI |
| 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 |
|---|---|
| 2CPA | Stanley Engineered Fastening Llc (USA) |
| Reference | Meaning |
|---|---|
| A-A-59158 TY1CL1 | 5/1 Secondary reference U.S. Government activity |
| A-A-59158 | 4/1 Identification reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| MIL-T-21309 | 5/9 Secondary reference U.S. Government activity |
| MIL-T-21309 TY1CL1 | 5/1 Secondary reference U.S. Government activity |
NSN 5136-00-134-7744 is a Tap,thread Cutting, manufactured by Stanley Engineered Fastening Llc, classified under FSC 5136, Taps, Dies, and Collets; Hand and Machine. Status: active.
NSN 5136-00-134-7744 has 1 manufacturer part number on file: 2CPA (Stanley Engineered Fastening Llc).
Key specifications for 2CPA: Shank Diameter: 0.220 INCHES MAXIMUM IN; Width Across Flats: 0.165 INCHES NOMINAL IN; Length: 0.281 INCHES NOMINAL SQUARE END IN; Thread Structure: REGULAR. 13 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.