The Countersink Set, cataloged under National Stock Number 5133-01-428-5695, 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. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5133-01-428-5695 |
| Primary Part Number | ATI590TA |
| Item Name | Countersink Set |
| 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 |
| 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 |
|---|---|
| ATI590TA | Snap-on Tools (australia) Pty Ltd (AUS) |
| AT590TA | Snap-on Tools (australia) Pty Ltd (AUS) |
| ATI590TA PRIMARY | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA) |
| Reference | Meaning |
|---|---|
| AT590TA | 5/9 Secondary reference Snap-on Incorporated Dba Snap-on Tools Div Snap-on Industrial, Special Products Division |
NSN 5133-01-428-5695 is a Countersink Set, 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 5133-01-428-5695 has 3 manufacturer part numbers on file: ATI590TA (Snap-on Tools (australia) Pty Ltd), AT590TA (Snap-on Tools (australia) Pty Ltd), ATI590TA (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc).
Key specifications for ATI590TA: Special Features: BACK COUNTERSINK CUTTER SET, 16 PIECES, CUTTERS SIZE 1/4, 5/16, 3/8, 1/2, 3/4, 7/8, 1 AND 1 1/4 IN. DIA.; PILOTS SIZE 3/32, 1/8, 5/32, 3/16, 1/4, 5/16, 3/8 AND 1/2 IN., 100 DEGREE, FURNISHED IN BOX IN. 0 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.