The Tap,thread Cutting, cataloged under National Stock Number 5136-01-520-6901, is classified within Federal Supply Class 5136 (Taps, Dies, and Collets; Hand and Machine) of the Hand Tools group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 8 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 | 5136-01-520-6901 |
| Primary Part Number | 2521A646 |
| Item Name | Tap,thread Cutting |
| FSC / FSG | 5136 / 51 — Taps, Dies, and Collets; Hand and Machine |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Thread Structure | REGULAR |
| Thread Length | 1.656 INCHES NOMINAL IN |
| Style Designator | STRAIGHT FLUTE |
| Thread Direction | RIGHT-HAND |
| Flute Quantity | 4 |
| Material | STEEL OVERALL |
| Thread Size and Series/type Designator | 0.562-12 UNIFIED NATIONAL COARSE (UNC) |
| Starting Chamfer Type | BOTTOMING |
| 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 |
|---|---|
| 2521A646 PRIMARY | Mcmaster-Carr Supply Co (USA) |
NSN 5136-01-520-6901 is a Tap,thread Cutting, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5136, Taps, Dies, and Collets; Hand and Machine. Status: active.
NSN 5136-01-520-6901 has 1 manufacturer part number on file: 2521A646 (Mcmaster-Carr Supply Co).
Key specifications for 2521A646: Thread Structure: REGULAR; Thread Length: 1.656 INCHES NOMINAL IN; Style Designator: STRAIGHT FLUTE; Overall Length: 3.594 INCHES NOMINAL IN. 8 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.