The Cutter,countersink, cataloged under National Stock Number 5133-00-293-2301, 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 Northwest Tool Corp. Government technical data includes 14 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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 | 5133-00-293-2301 |
| Primary Part Number | 5133-00-293-2301 |
| Item Name | Cutter,countersink |
| FSC / FSG | 5133 / 51 — Drill Bits, Counterbores, and Countersinks: Hand and Machine |
| Manufacturer | Northwest Tool Corp |
| Status | ACTIVE |
| Body Diameter | 0.875 INCHES NOMINAL IN |
| Point Diameter | 0.250 INCHES NOMINAL IN |
| Cutting End Style | STRAIGHT FLUTE BLUNT END |
| Taper Shank Size Designator | 2 JARNO |
| Hardness Rating | 60.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM |
| Holder Accommodated | TYPE 1 ADJUSTABLE |
| Features Provided | INTEGRAL PILOT |
| Departure From Cited Designator | AS MODIFIED BY FLUTE QUANTITY |
| Pilot Diameter | 0.250 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | 1 TYPE AND A STYLE AND M SIZE |
| Shank Style | STANDARD TAPER-ROUND |
| Flute Quantity | 3 |
| Included Angle | 100.0 DEGREES NOMINAL |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 5133-00-293-2301 | Northwest Tool Corp (USA) |
| Reference | Meaning |
|---|---|
| MIL-H-4081 CL1STASZM | 5/9 Secondary reference U.S. Government activity |
| A-A-58076 | 4/1 Identification reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| 6028B | 5/1 Secondary reference Learjet Inc |
| MIL-H-4081 | 5/9 Secondary reference U.S. Government activity |
| A-A-58076 TY1STASZM | 5/1 Secondary reference U.S. Government activity |
NSN 5133-00-293-2301 is a Cutter,countersink, manufactured by Northwest Tool Corp, classified under FSC 5133, Drill Bits, Counterbores, and Countersinks: Hand and Machine. Status: active.
NSN 5133-00-293-2301 has 1 manufacturer part number on file: 5133-00-293-2301 (Northwest Tool Corp).
9 possible matches (shared part number, not a government interchangeability claim): 5133-00-293-2302, 5133-00-293-2303, 5133-00-293-2304. Verify interchangeability with system specifications before substitution.
Key specifications for 5133-00-293-2301: Body Diameter: 0.875 INCHES NOMINAL IN; Point Diameter: 0.250 INCHES NOMINAL IN; Cutting End Style: STRAIGHT FLUTE BLUNT END; Taper Shank Size Designator: 2 JARNO. 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.