The Tap,thread Cutting, cataloged under National Stock Number 5136-00-671-2258, is classified within Federal Supply Class 5136 (Taps, Dies, and Collets; Hand and Machine) of the Hand Tools group. The manufacturer of record is Curtiss-Wright Controls, Inc. Div Actuation Division. Government technical data includes 16 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5136-00-671-2258 |
| Primary Part Number | 809540 |
| Item Name | Tap,thread Cutting |
| FSC / FSG | 5136 / 51 — Taps, Dies, and Collets; Hand and Machine |
| Manufacturer | Curtiss-Wright Controls, Inc. Div Actuation Division |
| Status | ACTIVE |
| Shank Diameter | 0.367 INCHES MINIMUM IN |
| Width Across Flats | 0.282 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN |
| Length | 0.3468 INCHES MINIMUM AND 0.4092 INCHES MAXIMUM SQUARE END IN |
| Thread Structure | REGULAR |
| Thread Length | 1.660 INCHES MINIMUM IN |
| Style Designator | STRAIGHT FLUTE |
| Thread Pitch Diameters | +0.3475 TO 0.3480 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Departure From Cited Designator | AS MODIFIED BY THREAD PITCH DIAMETERS AND FLUTE QUANTITY |
| Specification/standard Data | 05047-ASME B94.9 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nondefinitive Spec/std Data | 1 TYPE AND A SERIES AND B STYLE |
| Flute Quantity | 3 |
| Material | STEEL OVERALL |
| Thread Size and Series/type Designator | 0.375-16 UNIFIED NATIONAL COARSE (UNC) |
| Starting Chamfer Type | PLUG |
| Thread Forming Method | GROUND |
| 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 |
|---|---|
| 809540 | Curtiss-Wright Controls, Inc. Div Actuation Division (USA) |
| Reference | Meaning |
|---|---|
| B94.9 | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
| GGG-T-70 | 5/9 Secondary reference U.S. Government activity |
| GGG-T-70 TY1SEASTB | 5/9 Secondary reference U.S. Government activity |
NSN 5136-00-671-2258 is a Tap,thread Cutting, manufactured by Curtiss-Wright Controls, Inc. Div Actuation Division, classified under FSC 5136, Taps, Dies, and Collets; Hand and Machine. Status: active.
NSN 5136-00-671-2258 has 1 manufacturer part number on file: 809540 (Curtiss-Wright Controls, Inc. Div Actuation Division).
Key specifications for 809540: Shank Diameter: 0.367 INCHES MINIMUM IN; Width Across Flats: 0.282 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN; Length: 0.3468 INCHES MINIMUM AND 0.4092 INCHES MAXIMUM SQUARE END IN; Thread Structure: REGULAR. 16 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.