The Blade,hole Saw, cataloged under National Stock Number 3455-01-221-1425, is classified within Federal Supply Class 3455 (Cutting Tools for Machine Tools) of the Metalworking Machinery (continued) group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3455-01-221-1425 |
| Primary Part Number | 4066A71 |
| Item Name | Blade,hole Saw |
| FSC / FSG | 3455 / 34 — Cutting Tools for Machine Tools |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Teeth Quantity Per Unit of Measure | 6 PER INCH |
| Diameter | 4.750 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | I TYPE AND A STYLE AND A CLASS AND 76 SIZE |
| Material | STEEL |
| Cut Depth | 1.125 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 |
|---|---|
| 4066A71 | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| ASME B94.54 | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
| ASME B94.54 | 3/1 Design control — primary reference U.S. Government activity |
| A-A-51135 | 5/9 Secondary reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
NSN 3455-01-221-1425 is a Blade,hole Saw, manufactured by Mcmaster-Carr Supply Co, classified under FSC 3455, Cutting Tools for Machine Tools. Status: active.
NSN 3455-01-221-1425 has 1 manufacturer part number on file: 4066A71 (Mcmaster-Carr Supply Co).
Key specifications for 4066A71: Teeth Quantity Per Unit of Measure: 6 PER INCH; Diameter: 4.750 INCHES NOMINAL IN; Nondefinitive Spec/std Data: I TYPE AND A STYLE AND A CLASS AND 76 SIZE; Material: STEEL. 5 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.