The Countersink, cataloged under National Stock Number 5133-01-690-3160, 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 Gws Tool Llc Div Peterson Tool Co. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5133-01-690-3160 |
| Primary Part Number | 945301 |
| Item Name | Countersink |
| FSC / FSG | 5133 / 51 — Drill Bits, Counterbores, and Countersinks: Hand and Machine |
| Manufacturer | Gws Tool Llc Div Peterson Tool Co |
| Status | ACTIVE |
| Body Diameter | 1.00 INCHES NOMINAL IN |
| Pilot Diameter | 0.453 INCHES NOMINAL IN |
| 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 |
|---|---|
| 945301 PRIMARY | Gws Tool Llc Div Peterson Tool Co (USA) |
| Reference | Meaning |
|---|---|
| 945301 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
NSN 5133-01-690-3160 is a Countersink, manufactured by Gws Tool Llc Div Peterson Tool Co, classified under FSC 5133, Drill Bits, Counterbores, and Countersinks: Hand and Machine. Status: active.
NSN 5133-01-690-3160 has 1 manufacturer part number on file: 945301 (Gws Tool Llc Div Peterson Tool Co).
Key specifications for 945301: Body Diameter: 1.00 INCHES NOMINAL IN; Pilot Diameter: 0.453 INCHES NOMINAL IN. 2 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.