The Cutter Bit,tool Holder, cataloged under National Stock Number 3455-01-254-9782, is classified within Federal Supply Class 3455 (Cutting Tools for Machine Tools) of the Metalworking Machinery (continued) group. The manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3455-01-254-9782 |
| Primary Part Number | A-A-51143 STAR SZ12 CL6 |
| Item Name | Cutter Bit,tool Holder |
| FSC / FSG | 3455 / 34 — Cutting Tools for Machine Tools |
| Manufacturer | Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Overall Thickness | 0.750 INCHES NOMINAL IN |
| Shape | SQUARE |
| Material Location | TIP |
| Material Type for Which Designed | NONFERROUS METAL |
| Unable to Decode | UNABLE TO DECODE |
| Material | CARBIDE |
| Cutting Edge Finish | UNGROUND |
| 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 |
|---|---|
| A-A-51143 STAR SZ12 CL6 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| Reference | Meaning |
|---|---|
| AR 12 GRADE C6 | 5/9 Secondary reference Morse Cutting Tools Div of Morse Cutting Tool Corp |
NSN 3455-01-254-9782 is a Cutter Bit,tool Holder, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 3455, Cutting Tools for Machine Tools. Status: active.
NSN 3455-01-254-9782 has 1 manufacturer part number on file: A-A-51143 STAR SZ12 CL6 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).
Key specifications for A-A-51143 STAR SZ12 CL6: Overall Thickness: 0.750 INCHES NOMINAL IN; Shape: SQUARE; Overall Length: 4.500 INCHES NOMINAL IN; Overall Width: 0.750 INCHES NOMINAL IN. 7 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.