The Cutter,milling,end, cataloged under National Stock Number 3455-01-300-8129, is classified within Federal Supply Class 3455 (Cutting Tools for Machine Tools) of the Metalworking Machinery (continued) group. The manufacturer of record is New York Twist Drill Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3455-01-300-8129 |
| Primary Part Number | 42240-AA |
| Item Name | Cutter,milling,end |
| FSC / FSG | 3455 / 34 — Cutting Tools for Machine Tools |
| Manufacturer | New York Twist Drill Inc |
| Status | ACTIVE |
| Shank Diameter | 0.438 INCHES NOMINAL IN |
| Flute Design | HELICAL |
| Helix Direction | RIGHT-HAND |
| Design Form | SINGLE END |
| Shank Type | STRAIGHT |
| Cut Length | 1.000 INCHES NOMINAL IN |
| Diameter | 0.438 INCHES NOMINAL IN |
| Cutting Rotation Direction | RIGHT-HAND |
| Material | CARBIDE |
| 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 |
|---|---|
| 42240-AA PRIMARY | New York Twist Drill Inc (USA) |
| Reference | Meaning |
|---|---|
| 4741-0437 | 5/9 Secondary reference New York Twist Drill Inc |
NSN 3455-01-300-8129 is a Cutter,milling,end, manufactured by New York Twist Drill Inc, classified under FSC 3455, Cutting Tools for Machine Tools. Status: active.
NSN 3455-01-300-8129 has 1 manufacturer part number on file: 42240-AA (New York Twist Drill Inc).
Key specifications for 42240-AA: Shank Diameter: 0.438 INCHES NOMINAL IN; Flute Design: HELICAL; Helix Direction: RIGHT-HAND; Design Form: SINGLE END. 9 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.