The Drill,twist, cataloged under National Stock Number 5133-01-050-9903, is classified within Federal Supply Class 5133 (Drill Bits, Counterbores, and Countersinks: Hand and Machine) of the Hand Tools group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5133-01-050-9903 |
| Item Name | Drill,twist |
| FSC / FSG | 5133 / 51 — Drill Bits, Counterbores, and Countersinks: Hand and Machine |
| Status | ACTIVE |
| Shank Diameter | 0.177 INCHES NOMINAL IN |
| Cutting End Style | GENERAL PURPOSE |
| Flute Length | 2.188 INCHES NOMINAL IN |
| Nominal Cutting Diameter | 0.1770 INCHES IN |
| Cutting Rotation Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS907 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Shank Style | STRAIGHT ROUND |
| Flute Quantity | 2 |
| Material | STEEL OVERALL |
| Point Angle | 135.0 DEGREES NOMINAL |
| Point Type | SPLIT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 3408X | 5/9 Secondary reference Lear Siegler Inc National Twist Drill and Tool Div |
| 06366 | 5/9 Secondary reference Cleveland Twist Drill Co Div of Greenfield Industries Inc |
| 17816 | 5/9 Secondary reference Lear Siegler Inc National Twist Drill and Tool Div |
| C06366 | 5/9 Secondary reference Kennametal Inc. Div Kennametal Industrial Products Group |
| 06366 | 5/9 Secondary reference Kennametal Inc. Div Kennametal Industrial Products Group |
| NAS907 | 3/1 Design control — primary reference U.S. Government activity |
| 2421-0177 | 5/9 Secondary reference Cleveland Twist Drill Co Div of Greenfield Industries Inc |
| 3947-12 16 | 5/9 Secondary reference Cleveland Twist Drill Co Div of Greenfield Industries Inc |
| 3947-12 16 | 5/9 Secondary reference Kennametal Inc. Div Kennametal Industrial Products Group |
| 2525 | 5/1 Secondary reference Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039 |
NSN 5133-01-050-9903 is a Drill,twist, classified under FSC 5133, Drill Bits, Counterbores, and Countersinks: Hand and Machine. Status: active.
6 possible matches (shared part number, not a government interchangeability claim): 5950-01-082-5209, 8145-01-289-8625, 5331-01-310-5192. Verify interchangeability with system specifications before substitution.
Key specifications for 5133-01-050-9903: Shank Diameter: 0.177 INCHES NOMINAL IN; Cutting End Style: GENERAL PURPOSE; Flute Length: 2.188 INCHES NOMINAL IN; Overall Length: 12.000 INCHES NOMINAL IN. 11 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.