The Cutter,milling,end, cataloged under National Stock Number 3455-01-166-5158, 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 Kennametal Industrial Products Group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3455-01-166-5158 |
| Primary Part Number | C41721 |
| Item Name | Cutter,milling,end |
| FSC / FSG | 3455 / 34 — Cutting Tools for Machine Tools |
| Manufacturer | Kennametal Inc. Div Kennametal Industrial Products Group |
| Status | ACTIVE |
| Shank Diameter | 0.625 INCHES NOMINAL IN |
| Flute Design | HELICAL |
| Helix Direction | RIGHT-HAND |
| Design Form | SINGLE END |
| Shank Type | STRAIGHT |
| Cut Length | 2.000 INCHES NOMINAL IN |
| Diameter | 0.625 INCHES NOMINAL IN |
| Cutting Rotation Direction | RIGHT-HAND |
| Features Provided | CENTER CUTTING |
| Flute Quantity | 2 |
| Material | STEEL |
| 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 |
|---|---|
| C41721 PRIMARY | Kennametal Inc. Div Kennametal Industrial Products Group (USA) |
| 41721 PRIMARY | Kennametal Inc. Div Kennametal Industrial Products Group (USA) |
| GE-20A PRIMARY | Pohl Tool Co (USA) |
| Reference | Meaning |
|---|---|
| 41721 | 5/9 Secondary reference Cleveland Twist Drill Co Div of Greenfield Industries Inc |
NSN 3455-01-166-5158 is a Cutter,milling,end, manufactured by Kennametal Inc. Div Kennametal Industrial Products Group, classified under FSC 3455, Cutting Tools for Machine Tools. Status: active.
NSN 3455-01-166-5158 has 3 manufacturer part numbers on file: C41721 (Kennametal Inc. Div Kennametal Industrial Products Group), 41721 (Kennametal Inc. Div Kennametal Industrial Products Group), GE-20A (Pohl Tool Co).
Key specifications for C41721: Shank Diameter: 0.625 INCHES NOMINAL IN; Flute Design: HELICAL; Helix Direction: RIGHT-HAND; Design Form: SINGLE END. 11 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.