The Drill,twist, cataloged under National Stock Number 5133-01-609-5171, 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 Greenfield Industries Inc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5133-01-609-5171 |
| Primary Part Number | 44427 |
| Item Name | Drill,twist |
| FSC / FSG | 5133 / 51 — Drill Bits, Counterbores, and Countersinks: Hand and Machine |
| Manufacturer | Greenfield Industries Inc |
| Status | ACTIVE |
| Shank Diameter | 0.422 INCHES NOMINAL IN |
| Cutting End Style | GENERAL PURPOSE |
| Flute Length | 3.938 INCHES NOMINAL IN |
| Nominal Cutting Diameter | 0.4219 INCHES IN |
| Cutting Rotation Direction | LEFT-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 |
|---|---|
| 81127276 | Sid Tool Co Inc Dba Msc Industrial Supply Co Div Sid Tool Co., Inc. D/b/a Msc Industrial Supply Co. (USA) |
| 150L 27/64 | Greenfield Industries Inc (USA) |
| 44427 PRIMARY | Greenfield Industries Inc (USA) |
| 4DH14 | W.w. Grainger, Inc. Div Government Sales Division (USA) |
| Reference | Meaning |
|---|---|
| 44427 | 5/9 Secondary reference Kennametal Inc. Div Kennametal Industrial Products Group |
NSN 5133-01-609-5171 is a Drill,twist, manufactured by Greenfield Industries Inc, classified under FSC 5133, Drill Bits, Counterbores, and Countersinks: Hand and Machine. Status: active.
NSN 5133-01-609-5171 has 4 manufacturer part numbers on file: 81127276 (Sid Tool Co Inc Dba Msc Industrial Supply Co Div Sid Tool Co., Inc. D/b/a Msc Industrial Supply Co.), 150L 27/64 (Greenfield Industries Inc), 44427 (Greenfield Industries Inc), 4DH14 (W.w. Grainger, Inc. Div Government Sales Division).
1 possible match (shared part number, not a government interchangeability claim): 5895-01-723-0653. Verify interchangeability with system specifications before substitution.
Key specifications for 44427: Shank Diameter: 0.422 INCHES NOMINAL IN; Cutting End Style: GENERAL PURPOSE; Flute Length: 3.938 INCHES NOMINAL IN; Overall Length: 5.375 INCHES NOMINAL IN. 10 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.