The Bar,boring Tool, cataloged under National Stock Number 3460-01-339-1657, is classified within Federal Supply Class 3460 (Machine Tool Accessories) of the Metalworking Machinery (continued) group. The manufacturer of record is Walter Usa, Llc. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3460-01-339-1657 |
| Primary Part Number | GTB-075 |
| Item Name | Bar,boring Tool |
| FSC / FSG | 3460 / 34 — Machine Tool Accessories |
| Manufacturer | Walter Usa, Llc |
| Status | ACTIVE |
| Cutter Opening Angle in Deg | 60.0 |
| Length | 6.000 INCHES NOMINAL IN |
| Design Type | INSERTED CUTTER |
| Overall Diameter | 0.375 INCHES NOMINAL IN |
| Cutter Opening Quantity | 1 |
| Cutter Locking Method | CLAMP SCREW |
| Cutter Opening Location | ONE END |
| Cutter Bit Shape Accommodated | ROUND |
| Diameter | 0.750 INCHES NOMINAL IN |
| Shank Shape | STRAIGHT |
| Bushing | NOT INCLUDED |
| Expanding Feature | NOT INCLUDED |
| 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 |
|---|---|
| GTB-075 | Walter Usa, Llc (USA) |
| Reference | Meaning |
|---|---|
| GTB-075 | 3/9 Design control — primary reference Valenite Inc |
NSN 3460-01-339-1657 is a Bar,boring Tool, manufactured by Walter Usa, Llc, classified under FSC 3460, Machine Tool Accessories. Status: active.
NSN 3460-01-339-1657 has 1 manufacturer part number on file: GTB-075 (Walter Usa, Llc).
Key specifications for GTB-075: Cutter Opening Angle in Deg: 60.0; Length: 6.000 INCHES NOMINAL IN; Design Type: INSERTED CUTTER; Overall Diameter: 0.375 INCHES NOMINAL IN. 12 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.