The Cutter Bit,tool Holder, cataloged under National Stock Number 3455-00-041-4191, 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 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3455-00-041-4191 |
| Primary Part Number | GR-16 K21 |
| Item Name | Cutter Bit,tool Holder |
| FSC / FSG | 3455 / 34 — Cutting Tools for Machine Tools |
| Manufacturer | Kennametal Inc. Div Charlotte Business Office |
| Status | ACTIVE |
| Overall Thickness | 1.000 INCHES NOMINAL IN |
| Material Location | TIP |
| Material Type for Which Designed | FERROUS METAL AND NONFERROUS METAL |
| Edge Type | RIGHT HAND CORNER |
| Material | CARBIDE |
| Cutting Edge Finish | GROUND TO SHAPE |
| 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 |
|---|---|
| GR-16 K21 PRIMARY | Kennametal Inc. Div Charlotte Business Office (USA) |
| Reference | Meaning |
|---|---|
| ANSI B212.1 | 3/1 Design control — primary reference U.S. Government activity |
| GR-16 K21 | 5/9 Secondary reference U.S. Government activity |
NSN 3455-00-041-4191 is a Cutter Bit,tool Holder, manufactured by Kennametal Inc. Div Charlotte Business Office, classified under FSC 3455, Cutting Tools for Machine Tools. Status: active.
NSN 3455-00-041-4191 has 1 manufacturer part number on file: GR-16 K21 (Kennametal Inc. Div Charlotte Business Office).
Key specifications for GR-16 K21: Overall Thickness: 1.000 INCHES NOMINAL IN; Overall Length: 6.000 INCHES NOMINAL IN; Overall Width: 1.000 INCHES NOMINAL IN; Material Location: TIP. 6 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.