The Countersink, cataloged under National Stock Number 5133-00-466-6500, 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 F & D Tool Co Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5133-00-466-6500 |
| Primary Part Number | X412 |
| Item Name | Countersink |
| FSC / FSG | 5133 / 51 — Drill Bits, Counterbores, and Countersinks: Hand and Machine |
| Manufacturer | F & D Tool Co Inc |
| Status | ACTIVE |
| Body Diameter | 0.375 INCHES NOMINAL IN |
| 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 |
NSN 5133-00-466-6500 is a Countersink, manufactured by F & D Tool Co Inc, classified under FSC 5133, Drill Bits, Counterbores, and Countersinks: Hand and Machine. Status: active.
NSN 5133-00-466-6500 has 2 manufacturer part numbers on file: X412 (F & D Tool Co Inc), 357 (Millersburg Reamer and Tool Co).
1 possible match (shared part number, not a government interchangeability claim): 5330-00-825-3576. Verify interchangeability with system specifications before substitution.
Key specifications for X412: Body Diameter: 0.375 INCHES NOMINAL IN; Included Angle: 100.0 DEGREES NOMINAL; Material: STEEL OVERALL. 3 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.