The Drill Set,twist, cataloged under National Stock Number 5133-01-474-4981, 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 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5133-01-474-4981 |
| Primary Part Number | DB121C |
| Item Name | Drill Set,twist |
| 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 |
| Component Quantity | 21 |
| Specification/standard Data | 05047-ASME B94.11M PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nonsupply Items and Quantities | CONTAINS 1 EA FRACTIONAL SIZES 1/16 TO 3/8 IN. IN 1/64 IN. INCREMENTS IN |
| Furnished Items | METAL INDEXED CASE |
| 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 |
|---|---|
| DB121C | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA) |
| Reference | Meaning |
|---|---|
| DB121B | 5/9 Secondary reference Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc |
| B94.11M | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
NSN 5133-01-474-4981 is a Drill Set,twist, 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 5133-01-474-4981 has 1 manufacturer part number on file: DB121C (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc).
Key specifications for DB121C: Component Quantity: 21; Specification/standard Data: 05047-ASME B94.11M PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Nonsupply Items and Quantities: CONTAINS 1 EA FRACTIONAL SIZES 1/16 TO 3/8 IN. IN 1/64 IN. INCREMENTS IN; Special Features: HIGH SPEED STEEL; JOBBERS LG; 118 DEG POINT; STRAIGHT ROUND SHANK. 4 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.