The Countersink, cataloged under National Stock Number 5133-00-248-9909, 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 10 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5133-00-248-9909 |
| Primary Part Number | 5133-00-248-9909 |
| Item Name | Countersink |
| FSC / FSG | 5133 / 51 — Drill Bits, Counterbores, and Countersinks: Hand and Machine |
| Manufacturer | Northwest Tool Corp |
| Status | ACTIVE |
| Shank Diameter | 0.500 INCHES NOMINAL IN |
| Body Diameter | 0.625 INCHES NOMINAL IN |
| Cutting End Style | STRAIGHT FLUTE POINT END |
| Hardness Rating | 60.0 ROCKWELL C MINIMUM AND 65.0 ROCKWELL C MAXIMUM |
| Cutting Rotation Direction | RIGHT-HAND |
| Specification/standard Data | 05047-ASME B94.2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Shank Style | STRAIGHT ROUND |
| Flute Quantity | 3 |
| Included Angle | 100.0 DEGREES NOMINAL |
| Material | STEEL TOOL 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 |
|---|---|
| 5133-00-248-9909 | Northwest Tool Corp (USA) |
| Reference | Meaning |
|---|---|
| GGG-C-613 TY4CLBSZ5/8 IN. DEG100 | 5/9 Secondary reference U.S. Government activity |
| GGG-C-613 | 5/9 Secondary reference U.S. Government activity |
| B94.2 | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
NSN 5133-00-248-9909 is a Countersink, manufactured by Northwest Tool Corp, classified under FSC 5133, Drill Bits, Counterbores, and Countersinks: Hand and Machine. Status: active.
NSN 5133-00-248-9909 has 1 manufacturer part number on file: 5133-00-248-9909 (Northwest Tool Corp).
Key specifications for 5133-00-248-9909: Shank Diameter: 0.500 INCHES NOMINAL IN; Body Diameter: 0.625 INCHES NOMINAL IN; Cutting End Style: STRAIGHT FLUTE POINT END; Hardness Rating: 60.0 ROCKWELL C MINIMUM AND 65.0 ROCKWELL C MAXIMUM. 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.