The Drill,twist, cataloged under National Stock Number 5133-01-644-5820, 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 Stanley Tools Div of Stanley Works. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5133-01-644-5820 |
| Primary Part Number | 80139 |
| Item Name | Drill,twist |
| FSC / FSG | 5133 / 51 — Drill Bits, Counterbores, and Countersinks: Hand and Machine |
| Manufacturer | Stanley Tools Div of Stanley Works |
| Status | ACTIVE |
| Cutting End Style | GENERAL PURPOSE |
| Flute Length | 1.375 INCHES NOMINAL IN |
| Nominal Cutting Diameter | 0.0995 INCHES IN |
| Cutting Rotation Direction | RIGHT-HAND |
| 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 |
|---|---|
| 80139 PRIMARY | Stanley Tools Div of Stanley Works (USA) |
| Reference | Meaning |
|---|---|
| 80139 | 5/9 Secondary reference Irwin Industrial Tool Company Dba Irwin Construction Accessories |
| 80139 | 5/9 Secondary reference Irwin Industrial Tool Company |
NSN 5133-01-644-5820 is a Drill,twist, manufactured by Stanley Tools Div of Stanley Works, classified under FSC 5133, Drill Bits, Counterbores, and Countersinks: Hand and Machine. Status: active.
NSN 5133-01-644-5820 has 1 manufacturer part number on file: 80139 (Stanley Tools Div of Stanley Works).
2 possible matches (shared part number, not a government interchangeability claim): 3990-01-677-3086, 1560-01-679-5571. Verify interchangeability with system specifications before substitution.
Key specifications for 80139: Cutting End Style: GENERAL PURPOSE; Flute Length: 1.375 INCHES NOMINAL IN; Overall Length: 2.375 INCHES NOMINAL IN; Nominal Cutting Diameter: 0.0995 INCHES IN. 9 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.