The Cutter,milling,end, cataloged under National Stock Number 3455-01-166-1886, 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 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3455-01-166-1886 |
| Primary Part Number | 42179 |
| 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 | 0.750 INCHES NOMINAL IN |
| Flute Design | HELICAL |
| Helix Direction | RIGHT-HAND |
| Design Form | SINGLE END |
| Shank Type | WELDON |
| Cut Length | 1.625 INCHES NOMINAL IN |
| Diameter | 0.750 INCHES NOMINAL IN |
| Cutting Rotation Direction | RIGHT-HAND |
| Specification/standard Data | 80204-B94.19 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| 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 |
|---|---|
| 42179 PRIMARY | Kennametal Inc. Div Kennametal Industrial Products Group (USA) |
| Reference | Meaning |
|---|---|
| 42179 | 5/9 Secondary reference Cleveland Twist Drill Co Div of Greenfield Industries Inc |
| B94.19 TABLE 47 3/4 DIA OF CUT | 3/1 Design control — primary reference U.S. Government activity |
NSN 3455-01-166-1886 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 3455-01-166-1886 has 1 manufacturer part number on file: 42179 (Kennametal Inc. Div Kennametal Industrial Products Group).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-178-3187. Verify interchangeability with system specifications before substitution.
Key specifications for 42179: Shank Diameter: 0.750 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.