The File,rotary, cataloged under National Stock Number 3455-01-229-1905, is classified within Federal Supply Class 3455 (Cutting Tools for Machine Tools) of the Metalworking Machinery (continued) group. The manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3455-01-229-1905 |
| Primary Part Number | A-A-51146 TY I ST A SZ 20 CL B |
| Item Name | File,rotary |
| FSC / FSG | 3455 / 34 — Cutting Tools for Machine Tools |
| Manufacturer | Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Length | 0.250 INCHES NOMINAL IN |
| Overall Diameter | 0.750 INCHES NOMINAL IN |
| Cutter Tooth Style Designator | C6 |
| Cutting Surface Length | 0.750 INCHES NOMINAL IN |
| Diameter | 0.250 INCHES NOMINAL IN |
| Shape | STRAIGHT |
| Mounting Shank | INCLUDED |
| Removability Feature | NOT INCLUDED |
| Shank Overall Length | 2.250 INCHES NOMINAL IN |
| Material | STEEL |
| Cutter Tooth Shaping Method | GROUND FROM SOLID |
| Cutter Tooth Cut Style | MEDIUM |
| 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 |
|---|---|
| A-A-51146 TY I ST A SZ 20 CL B | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| Reference | Meaning |
|---|---|
| 33.056 | 3/9 Design control — primary reference Grobet File Company of America, Inc. Dba William Dixon |
| 28189 | 5/9 Secondary reference Grobet File Company of America, Inc. Dba William Dixon |
NSN 3455-01-229-1905 is a File,rotary, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 3455, Cutting Tools for Machine Tools. Status: active.
NSN 3455-01-229-1905 has 1 manufacturer part number on file: A-A-51146 TY I ST A SZ 20 CL B (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-280-4406, 5995-01-386-3078. Verify interchangeability with system specifications before substitution.
Key specifications for A-A-51146 TY I ST A SZ 20 CL B: Length: 0.250 INCHES NOMINAL IN; Overall Diameter: 0.750 INCHES NOMINAL IN; Cutter Tooth Style Designator: C6; Cutting Surface Length: 0.750 INCHES NOMINAL IN. 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.