The Drill,twist, cataloged under National Stock Number 5133-01-366-0168, 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 Kennametal Inc. Div Kennametal Industrial Products Group. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5133-01-366-0168 |
| Primary Part Number | C15957 |
| Item Name | Drill,twist |
| FSC / FSG | 5133 / 51 — Drill Bits, Counterbores, and Countersinks: Hand and Machine |
| Manufacturer | Kennametal Inc. Div Kennametal Industrial Products Group |
| Status | ACTIVE |
| Shank Diameter | 0.250 INCHES NOMINAL IN |
| Cutting End Style | GENERAL PURPOSE |
| Flute Length | 1.375 INCHES NOMINAL IN |
| Nominal Cutting Diameter | 0.2500 INCHES IN |
| Cutting Rotation Direction | RIGHT-HAND |
| Shank Style | STRAIGHT ROUND |
| Flute Quantity | 2 |
| Surface Treatment | OXIDE FILM OVERALL |
| Material | STEEL ALLOY 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 |
| Part Number | Manufacturer |
|---|---|
| C15957 PRIMARY | Kennametal Inc. Div Kennametal Industrial Products Group (USA) |
| Reference | Meaning |
|---|---|
| 3780 1/4 | C/1 Advisory reference — outside the item-of-supply concept Kennametal Inc. Div Kennametal Industrial Products Group |
| 3780 1/4 | 5/9 Secondary reference Cleveland Twist Drill Co Div of Greenfield Industries Inc |
| 15957 | 5/9 Secondary reference Cleveland Twist Drill Co Div of Greenfield Industries Inc |
NSN 5133-01-366-0168 is a Drill,twist, manufactured by Kennametal Inc. Div Kennametal Industrial Products Group, classified under FSC 5133, Drill Bits, Counterbores, and Countersinks: Hand and Machine. Status: active.
NSN 5133-01-366-0168 has 1 manufacturer part number on file: C15957 (Kennametal Inc. Div Kennametal Industrial Products Group).
3 possible matches (shared part number, not a government interchangeability claim): 4140-01-559-4939, 8145-01-627-5575, 5962-01-659-0407. Verify interchangeability with system specifications before substitution.
Key specifications for C15957: Shank Diameter: 0.250 INCHES NOMINAL IN; Cutting End Style: GENERAL PURPOSE; Flute Length: 1.375 INCHES NOMINAL IN; Overall Length: 4.000 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.