The Cutter,milling,metal Slitting, cataloged under National Stock Number 3455-01-366-2321, 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 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3455-01-366-2321 |
| Primary Part Number | 45558 |
| Item Name | Cutter,milling,metal Slitting |
| FSC / FSG | 3455 / 34 — Cutting Tools for Machine Tools |
| Manufacturer | Kennametal Inc. Div Kennametal Industrial Products Group |
| Status | ACTIVE |
| Tooth Arrangement | STRAIGHT |
| Side Chip Clearance Feature | NOT INCLUDED |
| Mounting Hole Diameter | 1.250 INCHES NOMINAL IN |
| Outside Diameter | 5.000 INCHES NOMINAL IN |
| Face Width | 0.125 INCHES NOMINAL 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 |
|---|---|
| 45558 PRIMARY | Kennametal Inc. Div Kennametal Industrial Products Group (USA) |
| 326-22 PRIMARY | Kennametal Inc. Div Kennametal Industrial Products Group (USA) |
| Reference | Meaning |
|---|---|
| 326-22 | 5/9 Secondary reference Cleveland Twist Drill Co Div of Greenfield Industries Inc |
| 45558 | 3/9 Design control — primary reference Cleveland Twist Drill Co Div of Greenfield Industries Inc |
NSN 3455-01-366-2321 is a Cutter,milling,metal Slitting, manufactured by Kennametal Inc. Div Kennametal Industrial Products Group, classified under FSC 3455, Cutting Tools for Machine Tools. Status: active.
NSN 3455-01-366-2321 has 2 manufacturer part numbers on file: 45558 (Kennametal Inc. Div Kennametal Industrial Products Group), 326-22 (Kennametal Inc. Div Kennametal Industrial Products Group).
1 possible match (shared part number, not a government interchangeability claim): 6625-01-430-9393. Verify interchangeability with system specifications before substitution.
Key specifications for 45558: Tooth Arrangement: STRAIGHT; Side Chip Clearance Feature: NOT INCLUDED; Mounting Hole Diameter: 1.250 INCHES NOMINAL IN; Outside Diameter: 5.000 INCHES NOMINAL IN. 5 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.