The Insert,cutting Tool, cataloged under National Stock Number 3455-01-172-6951, is classified within Federal Supply Class 3455 (Cutting Tools for Machine Tools) of the Metalworking Machinery (continued) group. The manufacturer of record is Seco Tools, Llc Dba Seco. Government technical data includes 10 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3455-01-172-6951 |
| Primary Part Number | TPG-221E/515 |
| Item Name | Insert,cutting Tool |
| FSC / FSG | 3455 / 34 — Cutting Tools for Machine Tools |
| Manufacturer | Seco Tools, Llc Dba Seco |
| Status | ACTIVE |
| Mounting Method | CLAMP |
| Overall Thickness | 0.125 INCHES NOMINAL IN |
| Angular Measurement and Type | 11.0 DEGREES BEVEL AND 60.0 DEGREES INCLUDED AND 11.0 DEGREES RELIEF |
| Inscribed Circle Diameter | 0.250 INCHES IN |
| Shape | TRIANGULAR |
| Features Provided | POSITIVE RAKE AND COATED AND ALL SURFACES GROUND |
| Specification/standard Data | 80204-B94.19 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Function for Which Designed | MILLING |
| Material | CARBIDE |
| Point Radius | 0.015 INCHES 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 |
|---|---|
| TPG-221E/515 PRIMARY | Seco Tools, Llc Dba Seco (USA) |
| Reference | Meaning |
|---|---|
| TPG-221A/CNC | 5/9 Secondary reference Hertel Cutting Technologies Inc |
| TPG-221/VN-8 | 5/9 Secondary reference Valenite Inc |
| B94.25 TYP-221 TABLE 13 | 3/1 Design control — primary reference U.S. Government activity |
NSN 3455-01-172-6951 is a Insert,cutting Tool, manufactured by Seco Tools, Llc Dba Seco, classified under FSC 3455, Cutting Tools for Machine Tools. Status: active.
NSN 3455-01-172-6951 has 1 manufacturer part number on file: TPG-221E/515 (Seco Tools, Llc Dba Seco).
Key specifications for TPG-221E/515: Mounting Method: CLAMP; Overall Thickness: 0.125 INCHES NOMINAL IN; Angular Measurement and Type: 11.0 DEGREES BEVEL AND 60.0 DEGREES INCLUDED AND 11.0 DEGREES RELIEF; Inscribed Circle Diameter: 0.250 INCHES IN. 10 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.