The Tap,thread Cutting, cataloged under National Stock Number 5136-01-249-2956, is classified within Federal Supply Class 5136 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Tapco Cutting Tools Inc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5136-01-249-2956 |
| Primary Part Number | 54450 |
| Item Name | Tap,thread Cutting |
| FSC / FSG | 5136 / 51 — No Item Name Available |
| Manufacturer | Tapco Cutting Tools Inc |
| Status | ACTIVE |
| Thread Pitch Diameters | +0.2180 TO 0.2185 INCHES IN |
| Starting Chamfer Type | BOTTOMING |
| Specification/standard Data | 05047-ASME B94.9 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Thread Size and Series/type Designator | 0.250-20 UNIFIED NATIONAL COARSE (UNC) |
| Flute Quantity | 4 |
| Length | 0.312 INCHES NOMINAL SQUARE END IN |
| Thread Forming Method | GROUND |
| Material | STEEL OVERALL |
| Style Designator | STRAIGHT FLUTE |
| Thread Structure | REGULAR |
| Width Across Flats | 0.191 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Shank Diameter | 0.318 INCHES MINIMUM IN |
| Thread Length | 1.130 INCHES MINIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 14017 | Greenfield Industries Inc (USA) |
| C54450 | Greenfield Industries Inc (USA) |
| 54450 PRIMARY | Tapco Cutting Tools Inc (USA) |
| A-A-625 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| GGG-T-70 TY1SEASTC | General Services Administration Federal Supply Service (USA) |
| 120984 | Jarvis Cutting Tools Inc (USA) |
| C54450 | Kennametal Inc. Div Kennametal Industrial Products Group (USA) |
| B94.9 1/4-20 UNC HS G H2 | General Services Administration Federal Supply Service (USA) |
| 14017 | Kennametal Inc. Div Kennametal Industrial Products Group (USA) |
| 08317 | Regal-Beloit Corporation Div Regal Cutting Tools (USA) |
| 11102 | Osg Usa Inc (USA) |
| B94.9 | The American Society of Mechanical Engineers (USA) |
| GGG-T-70 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 54450 | Tapco (USA) |
NSN 5136-01-249-2956 is a Tap,thread Cutting, manufactured by Tapco Cutting Tools Inc, classified under FSC 5136 (No Item Name Available). Status: active.
NSN 5136-01-249-2956 has 14 cross-referenced part numbers: 14017 (Greenfield Industries Inc), C54450 (Greenfield Industries Inc), 54450 (Tapco Cutting Tools Inc), A-A-625 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), GGG-T-70 TY1SEASTC (General Services Administration Federal Supply Service) and 9 more.
There are 12 known substitutes for 5136-01-249-2956: 5325-00-050-2863, 5930-00-053-1504, 5841-00-090-6366 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 54450: Thread Pitch Diameters: +0.2180 TO 0.2185 INCHES IN; Overall Length: 2.500 INCHES NOMINAL IN; Starting Chamfer Type: BOTTOMING; Specification/standard Data: 05047-ASME B94.9 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 15 total characteristics are documented in the Federal Logistics Information System.