The Drill,twist, cataloged under National Stock Number 5133-01-443-6307, 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 Precision Twist Drill Co. Government technical data includes 14 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5133-01-443-6307 |
| Primary Part Number | 45620 |
| Item Name | Drill,twist |
| FSC / FSG | 5133 / 51 — Drill Bits, Counterbores, and Countersinks: Hand and Machine |
| Manufacturer | Precision Twist Drill Co |
| Status | ACTIVE |
| Cutting End Style | GENERAL PURPOSE |
| Flute Length | 0.562 INCHES NOMINAL IN |
| Nominal Cutting Diameter | 0.1610 INCHES IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Cutting Rotation Direction | RIGHT-HAND |
| Thread Direction | RIGHT-HAND |
| Shank Style | EXTERNALLY THREADED W/HEX NUT |
| Flute Quantity | 2 |
| Thread Class | 2A A |
| Material | STEEL OVERALL |
| Point Angle | 135.0 DEGREES NOMINAL |
| Thread Series Designator | UNF |
| Point Type | SPLIT |
| Thread Quantity | 28 PER INCH |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5133-01-443-6307 is a Drill,twist, manufactured by Precision Twist Drill Co, classified under FSC 5133, Drill Bits, Counterbores, and Countersinks: Hand and Machine. Status: active.
NSN 5133-01-443-6307 has 2 manufacturer part numbers on file: TS18 20 (Precision Twist Drill Co), 45620 (Precision Twist Drill Co).
1 possible match (shared part number, not a government interchangeability claim): 1240-01-589-1830. Verify interchangeability with system specifications before substitution.
Key specifications for 45620: Cutting End Style: GENERAL PURPOSE; Flute Length: 0.562 INCHES NOMINAL IN; Overall Length: 1.250 INCHES NOMINAL IN; Nominal Cutting Diameter: 0.1610 INCHES IN. 14 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.