The Head,boring, cataloged under National Stock Number 3460-01-047-4220, is classified within Federal Supply Class 3460 (Machine Tool Accessories) of the Metalworking Machinery (continued) group. The manufacturer of record is Kennametal Inc. Div Charlotte Business Office. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3460-01-047-4220 |
| Primary Part Number | H20-DDUNR4W |
| Item Name | Head,boring |
| FSC / FSG | 3460 / 34 — Machine Tool Accessories |
| Manufacturer | Kennametal Inc. Div Charlotte Business Office |
| Status | ACTIVE |
| General Characteristics Item Description | 3 DEG REVERSE LEAD; 1.250 IN. DIA; 1.625 IN. LG; 2.000 IN. MIN BORE; W/INSERT-DIAMOND SHAPED-0.500 IN. INSCRIBED CIRCLE-0.188 IN. THK 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 |
|---|---|
| H20-DDUNR4W PRIMARY | Kennametal Inc. Div Charlotte Business Office (USA) |
| Reference | Meaning |
|---|---|
| H20-DDUNR4W | 5/9 Secondary reference U.S. Government activity |
| 1036 | 5/9 Secondary reference U.S. Government activity |
NSN 3460-01-047-4220 is a Head,boring, manufactured by Kennametal Inc. Div Charlotte Business Office, classified under FSC 3460, Machine Tool Accessories. Status: active.
NSN 3460-01-047-4220 has 1 manufacturer part number on file: H20-DDUNR4W (Kennametal Inc. Div Charlotte Business Office).
Key specifications for H20-DDUNR4W: General Characteristics Item Description: 3 DEG REVERSE LEAD; 1.250 IN. DIA; 1.625 IN. LG; 2.000 IN. MIN BORE; W/INSERT-DIAMOND SHAPED-0.500 IN. INSCRIBED CIRCLE-0.188 IN. THK IN. 1 specification is 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.