The Reamer,machine, cataloged under National Stock Number 3455-00-232-4093, is classified within Federal Supply Class 3455 (Cutting Tools for Machine Tools) of the Metalworking Machinery (continued) group. The manufacturer of record is Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 10 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 16 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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 | 3455-00-232-4093 |
| Primary Part Number | 19941 |
| Item Name | Reamer,machine |
| FSC / FSG | 3455 / 34 — Cutting Tools for Machine Tools |
| Manufacturer | Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa |
| Status | ACTIVE |
| Shank Diameter | 0.078 INCHES NOMINAL IN |
| Flute Design | HELICAL |
| Helix Direction | LEFT-HAND |
| Flute Cut Direction | RIGHT-HAND |
| Shank Type | STRAIGHT |
| Guide | NOT INCLUDED |
| Flute Length | 0.813 INCHES NOMINAL IN |
| Diameter | 0.0497 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN |
| Specification/standard Data | 80204-B94.2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Flute Type | INTEGRAL |
| Flute Quantity | 2 |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Material | STEEL CUTTING EDGE TIP |
| Reamer Type | HELICAL TAPER PIN |
| 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 |
|---|---|
| 300R-066 | Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa (USA) |
| 50-11157 | Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039 (USA) |
| 19941 PRIMARY | Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa (USA) |
| 24229 | Kennametal Inc. Div Kennametal Industrial Products Group (USA) |
| 4240-9093 | Kennametal Inc. Div Kennametal Industrial Products Group (USA) |
| 50-11157 4588-7/0 | Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039 (USA) |
| 712-053016 | Doall Baltimore Company (USA) |
| 4588-70 | Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039 (USA) |
| 63460 | Jcorps Dba Lashundra Craig (USA) |
| 650-7/0 | Kennametal Inc. Div Kennametal Industrial Products Group (USA) |
| Reference | Meaning |
|---|---|
| 37641 | 5/9 Secondary reference Standard Tool Co Div of Lear Siegler Inc |
| 1683-001-7/0 | 5/9 Secondary reference Morse Cutting Tools Div of Morse Cutting Tool Corp |
| 37641 | 5/9 Secondary reference Lear Siegler Inc National Twist Drill and Tool Div |
| 588 NO 7/0 | 5/9 Secondary reference Lavallee & Ide Inc |
| GGG-R-180 | 5/9 Secondary reference U.S. Government activity |
| 21763 | 5/9 Secondary reference Colt Industries Operating Corp Pratt and Whitney Machine Tool Div |
| ASME B94.2 | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
| ANSI-B94.2 | 5/9 Secondary reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| 650-7/0 | 5/9 Secondary reference Cleveland Twist Drill Co Div of Greenfield Industries Inc |
| 22611 | 5/9 Secondary reference Morse Cutting Tools Div of Morse Cutting Tool Corp |
| B94.2-1971 TABLE 27 | 5/9 Secondary reference U.S. Government activity |
| 4240-9093 | 5/9 Secondary reference Cleveland Twist Drill Co Div of Greenfield Industries Inc |
| 588-7/0 | 5/9 Secondary reference Lavallee & Ide Inc |
| B94.2 TABLE 25 | 5/9 Secondary reference U.S. Government activity |
| 24229 | 5/9 Secondary reference Cleveland Twist Drill Co Div of Greenfield Industries Inc |
| 10-485 | 5/9 Secondary reference Colt Industries Operating Corp Pratt and Whitney Machine Tool Div |
NSN 3455-00-232-4093 is a Reamer,machine, manufactured by Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa, classified under FSC 3455, Cutting Tools for Machine Tools. Status: active.
NSN 3455-00-232-4093 has 10 manufacturer part numbers on file: 300R-066 (Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa), 50-11157 (Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039), 19941 (Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa), 24229 (Kennametal Inc. Div Kennametal Industrial Products Group), 4240-9093 (Kennametal Inc. Div Kennametal Industrial Products Group) and 5 more.
6 possible matches (shared part number, not a government interchangeability claim): 3455-00-232-4094, 3455-00-232-4095, 3455-00-232-4096. Verify interchangeability with system specifications before substitution.
Key specifications for 19941: Shank Diameter: 0.078 INCHES NOMINAL IN; Flute Design: HELICAL; Helix Direction: LEFT-HAND; Flute Cut Direction: RIGHT-HAND. 14 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.