The Tap,thread Cutting, cataloged under National Stock Number 5136-00-671-2249, 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 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5136-00-671-2249 |
| Primary Part Number | 809530 |
| 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 | 0.2535 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN |
| Width Across Flats | 0.187 INCHES MINIMUM AND 0.191 INCHES MAXIMUM IN |
| Length | 0.2500 INCHES MINIMUM AND 0.3124 INCHES MAXIMUM SQUARE END IN |
| Thread Structure | REGULAR |
| Thread Length | 0.9375 INCHES MINIMUM AND 1.0625 INCHES MAXIMUM IN |
| Style Designator | SPIRAL POINTED FLUTE |
| Thread Pitch Diameters | +0.2328 TO 0.2333 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Departure From Cited Designator | AS MODIFIED BY PITCH DIA AND FLUTE DATE |
| Nondefinitive Spec/std Data | 2 TYPE AND A SERIES AND B STYLE |
| Flute Quantity | 2 |
| Material | STEEL OVERALL |
| Thread Size and Series/type Designator | 0.250-20 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 |
|---|---|
| 809530 PRIMARY | Curtiss-Wright Controls, Inc. Div Actuation Division (USA) |
| Reference | Meaning |
|---|---|
| GGG-T-70 TY2SEASTB | 5/1 Secondary reference U.S. Government activity |
| GGG-T-70 | 4/1 Identification reference U.S. Government activity |
NSN 5136-00-671-2249 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 5136-00-671-2249 has 1 manufacturer part number on file: 809530 (Curtiss-Wright Controls, Inc. Div Actuation Division).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-182-7535. Verify interchangeability with system specifications before substitution.
Key specifications for 809530: Shank Diameter: 0.2535 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN; Width Across Flats: 0.187 INCHES MINIMUM AND 0.191 INCHES MAXIMUM IN; Length: 0.2500 INCHES MINIMUM AND 0.3124 INCHES MAXIMUM SQUARE END IN; Thread Structure: REGULAR. 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.