The Cutter Set,countersink, cataloged under National Stock Number 5133-01-428-5685, is classified within Federal Supply Class 5133 (Drill Bits, Counterbores, and Countersinks: Hand and Machine) of the Hand Tools group. The manufacturer of record is Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5133-01-428-5685 |
| Primary Part Number | ATI420D-4PC |
| Item Name | Cutter Set,countersink |
| FSC / FSG | 5133 / 51 — Drill Bits, Counterbores, and Countersinks: Hand and Machine |
| Manufacturer | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc |
| Status | ACTIVE |
| General Characteristics Item Description | CONTAINS 1 EA PILOT SIZES 3/32, 1/8, 5/32 AND 3/16 IN. IN |
| Nondefinitive Spec/std Data | 2 TYPE AND A STYLE |
| 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 |
|---|---|
| ATI420D-4PC | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA) |
| ATI420D-4PC | Tecno Trade S.r.l. (ITA) |
| Reference | Meaning |
|---|---|
| A-A-58076 | 4/1 Identification reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| A-A-58076 TY2STA | 5/1 Secondary reference U.S. Government activity |
| AT420D-4PC | 5/9 Secondary reference Snap-on Incorporated Dba Snap-on Tools Div Snap-on Industrial, Special Products Division |
NSN 5133-01-428-5685 is a Cutter Set,countersink, manufactured by Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc, classified under FSC 5133, Drill Bits, Counterbores, and Countersinks: Hand and Machine. Status: active.
NSN 5133-01-428-5685 has 2 manufacturer part numbers on file: ATI420D-4PC (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), ATI420D-4PC (Tecno Trade S.r.l.).
Key specifications for ATI420D-4PC: General Characteristics Item Description: CONTAINS 1 EA PILOT SIZES 3/32, 1/8, 5/32 AND 3/16 IN. IN; Nondefinitive Spec/std Data: 2 TYPE AND A STYLE; Special Features: HIGH SPEED STEEL; 7/16 IN. BODY DIA; 100 DEG; 3-FLUTE; INCLUDES THREADED ANODIZED ALUMINUM HOLDER IN. 2 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.