The Insert,cutting Tool, cataloged under National Stock Number 3455-01-026-0126, is classified within Federal Supply Class 3455 (Cutting Tools for Machine Tools) of the Metalworking Machinery (continued) group. The manufacturer of record is Kennametal Inc. Div Charlotte Business Office. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3455-01-026-0126 |
| Primary Part Number | T-221-P K420 |
| Item Name | Insert,cutting Tool |
| FSC / FSG | 3455 / 34 — Cutting Tools for Machine Tools |
| Manufacturer | Kennametal Inc. Div Charlotte Business Office |
| Status | ACTIVE |
| Mounting Method | COUNTERSUNK HOLE |
| Overall Thickness | 0.125 INCHES NOMINAL IN |
| Angular Measurement and Type | 60.0 DEGREES INCLUDED AND 5.0 DEGREES RELIEF |
| Inscribed Circle Diameter | 0.250 INCHES IN |
| Mounting Hole Diameter | 0.093 INCHES IN |
| Shape | TRIANGULAR |
| Features Provided | HONED AND POSITIVE RAKE |
| Function for Which Designed | MILLING |
| Material | CARBIDE |
| Point Radius | 0.016 INCHES IN |
| 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 |
|---|---|
| T-221-P K420 PRIMARY | Kennametal Inc. Div Charlotte Business Office (USA) |
| Reference | Meaning |
|---|---|
| T-221-P/K420 | 5/9 Secondary reference U.S. Government activity |
| T-221-P K42 | 5/9 Secondary reference Kennametal Inc. Div Charlotte Business Office |
NSN 3455-01-026-0126 is a Insert,cutting Tool, manufactured by Kennametal Inc. Div Charlotte Business Office, classified under FSC 3455, Cutting Tools for Machine Tools. Status: active.
NSN 3455-01-026-0126 has 1 manufacturer part number on file: T-221-P K420 (Kennametal Inc. Div Charlotte Business Office).
Key specifications for T-221-P K420: Mounting Method: COUNTERSUNK HOLE; Overall Thickness: 0.125 INCHES NOMINAL IN; Angular Measurement and Type: 60.0 DEGREES INCLUDED AND 5.0 DEGREES RELIEF; Inscribed Circle Diameter: 0.250 INCHES IN. 10 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.