The Countersink, cataloged under National Stock Number 5133-00-177-7269, is classified within Federal Supply Class 5133 (Drill Bits, Counterbores, and Countersinks: Hand and Machine) of the Hand Tools group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5133-00-177-7269 |
| Item Name | Countersink |
| FSC / FSG | 5133 / 51 — Drill Bits, Counterbores, and Countersinks: Hand and Machine |
| Status | ACTIVE |
| Shank Diameter | 0.601 INCHES NOMINAL IN |
| Body Diameter | 0.596 INCHES MINIMUM AND 0.606 INCHES MAXIMUM IN |
| Point Diameter | 0.475 INCHES NOMINAL IN |
| Cutting End Style | STRAIGHT FLUTE BLUNT END |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM |
| Cutting Rotation Direction | RIGHT-HAND |
| Features Provided | INTEGRAL PILOT |
| Pilot Diameter | 0.483 INCHES MINIMUM AND 0.484 INCHES MAXIMUM IN |
| Shank Style | STRAIGHT ROUND |
| Flute Quantity | 2 |
| Included Angle | 90.0 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 |
| Reference | Meaning |
|---|---|
| RCADC38-484 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5133-00-177-7269 is a Countersink, classified under FSC 5133, Drill Bits, Counterbores, and Countersinks: Hand and Machine. Status: active.
Key specifications for 5133-00-177-7269: Shank Diameter: 0.601 INCHES NOMINAL IN; Body Diameter: 0.596 INCHES MINIMUM AND 0.606 INCHES MAXIMUM IN; Point Diameter: 0.475 INCHES NOMINAL IN; Cutting End Style: STRAIGHT FLUTE BLUNT END. 12 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.