The Countersink, cataloged under National Stock Number 5133-00-131-6776, 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 The Boeing Company Div Defense. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5133-00-131-6776 |
| Primary Part Number | TFIM25.0141-094 |
| Item Name | Countersink |
| FSC / FSG | 5133 / 51 — Drill Bits, Counterbores, and Countersinks: Hand and Machine |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Body Diameter | 0.500 INCHES NOMINAL IN |
| Cutting Rotation Direction | RIGHT-HAND |
| Features Provided | INTEGRAL PILOT |
| Pilot Diameter | 0.199 INCHES NOMINAL IN |
| Flute Quantity | 2 |
| 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 |
|---|---|
| TFIM25.0141-094 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| TFIM25-0141094 | 5/9 Secondary reference The Boeing Company Div Defense |
NSN 5133-00-131-6776 is a Countersink, manufactured by The Boeing Company Div Defense, classified under FSC 5133, Drill Bits, Counterbores, and Countersinks: Hand and Machine. Status: active.
NSN 5133-00-131-6776 has 1 manufacturer part number on file: TFIM25.0141-094 (The Boeing Company Div Defense).
Key specifications for TFIM25.0141-094: Body Diameter: 0.500 INCHES NOMINAL IN; Overall Length: 1.270 INCHES NOMINAL IN; Cutting Rotation Direction: RIGHT-HAND; Features Provided: INTEGRAL PILOT. 7 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.