The Drill,twist, cataloged under National Stock Number 5133-00-640-6358, 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 Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5133-00-640-6358 |
| Primary Part Number | 518 1/2 |
| Item Name | Drill,twist |
| FSC / FSG | 5133 / 51 — Drill Bits, Counterbores, and Countersinks: Hand and Machine |
| Manufacturer | Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039 |
| Status | ACTIVE |
| Shank Diameter | 0.500 INCHES NOMINAL IN |
| Cutting End Style | GENERAL PURPOSE |
| Flute Length | 14.000 INCHES NOMINAL IN |
| Nominal Cutting Diameter | 0.5000 INCHES IN |
| Cutting Rotation Direction | RIGHT-HAND |
| Specification/standard Data | 05047-ASME B94.11M PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Shank Style | STRAIGHT ROUND |
| Flute Quantity | 2 |
| Material | STEEL OVERALL |
| Point Angle | 118.0 DEGREES NOMINAL |
| Point Type | CONVENTIONAL |
| 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 |
|---|---|
| 518 1/2 | Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039 (USA) |
| 47-10399 | Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039 (USA) |
| Reference | Meaning |
|---|---|
| B94.11M | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
| 444X 1/2 (18 IN. LG) | 5/9 Secondary reference Greenfield Industries Inc |
| GGG-D-751 | 5/9 Secondary reference U.S. Government activity |
NSN 5133-00-640-6358 is a Drill,twist, manufactured by Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039, classified under FSC 5133, Drill Bits, Counterbores, and Countersinks: Hand and Machine. Status: active.
NSN 5133-00-640-6358 has 2 manufacturer part numbers on file: 518 1/2 (Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039), 47-10399 (Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039).
3 possible matches (shared part number, not a government interchangeability claim): 1005-00-831-1405, 2940-01-417-9375, 4730-01-674-6805. Verify interchangeability with system specifications before substitution.
Key specifications for 518 1/2: Shank Diameter: 0.500 INCHES NOMINAL IN; Cutting End Style: GENERAL PURPOSE; Flute Length: 14.000 INCHES NOMINAL IN; Overall Length: 18.000 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.