The Holder,countersink, cataloged under National Stock Number 3460-01-211-6262, is classified within Federal Supply Class 3460 (Machine Tool Accessories) of the Metalworking Machinery (continued) group. The manufacturer of record is Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3460-01-211-6262 |
| Primary Part Number | AT 460HSS |
| Item Name | Holder,countersink |
| FSC / FSG | 3460 / 34 — Machine Tool Accessories |
| Manufacturer | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc |
| Status | ACTIVE |
| Shank Diameter | 0.250 INCHES NOMINAL IN |
| Cutter Diameter Range | +0.250 TO 0.625 INCHES IN |
| Design Type | BORING |
| Shank Type | ROUND |
| Supplementary Features | ASSY CONSISTS OF P/N AT 460SL SERIES HIGH SPEED ACRO-STOP,P/N AT 440-9X SKIRT AND P/N AT 440A-1 SKIRT A |
| Cutter Drive Type for Which Designed | THREADED |
| 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 |
|---|---|
| AT 460HSS PRIMARY | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA) |
| Reference | Meaning |
|---|---|
| AT 460HSS | 3/9 Design control — primary reference Snap-on Incorporated Dba Snap-on Tools Div Snap-on Industrial, Special Products Division |
NSN 3460-01-211-6262 is a Holder,countersink, manufactured by Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc, classified under FSC 3460, Machine Tool Accessories. Status: active.
NSN 3460-01-211-6262 has 1 manufacturer part number on file: AT 460HSS (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc).
Key specifications for AT 460HSS: Shank Diameter: 0.250 INCHES NOMINAL IN; Cutter Diameter Range: +0.250 TO 0.625 INCHES IN; Design Type: BORING; Shank Type: ROUND. 6 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.