The Reamer,machine, cataloged under National Stock Number 3455-00-260-3324, is classified within Federal Supply Class 3455 (Cutting Tools for Machine Tools) of the Metalworking Machinery (continued) group. The manufacturer of record is New York Twist Drill Inc. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 11 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 15 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3455-00-260-3324 |
| Primary Part Number | 5531-0250 |
| Item Name | Reamer,machine |
| FSC / FSG | 3455 / 34 — Cutting Tools for Machine Tools |
| Manufacturer | New York Twist Drill Inc |
| Status | ACTIVE |
| Flute Design | SPIRAL |
| Helix Direction | RIGHT-HAND |
| Flute Cut Direction | RIGHT-HAND |
| Shank Type | MORSE TAPER |
| Guide | NOT INCLUDED |
| Flute Length | 2.625 INCHES NOMINAL IN |
| Diameter | 0.969 INCHES NOMINAL IN |
| Shank Taper Number | 3 |
| Specification/standard Data | 80204-B94.2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Flute Type | INTEGRAL |
| Flute Quantity | 8 |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Material | STEEL CUTTING EDGE TIP |
| Reamer Type | FLUTED CHUCKING |
| 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 |
|---|---|
| 612-31 | Kennametal Inc. Div Kennametal Industrial Products Group (USA) |
| 5531-0250 PRIMARY | New York Twist Drill Inc (USA) |
| 712-042167 PRIMARY | Doall Baltimore Company (USA) |
| 4035-0968 | Kennametal Inc. Div Kennametal Industrial Products Group (USA) |
| 50-10163 | Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039 (USA) |
| 50-10163 4537-31/32 PRIMARY | Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039 (USA) |
| 4537-31/32 | Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039 (USA) |
| 37364 | Kennametal Inc. Div Kennametal Industrial Products Group (USA) |
| 61262 | Jcorps Dba Lashundra Craig (USA) |
| 232R-968 | Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa (USA) |
| 19835 PRIMARY | Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa (USA) |
| Reference | Meaning |
|---|---|
| 537-9687 | 5/9 Secondary reference Lavallee & Ide Inc |
| 4035-0968 | 5/9 Secondary reference Cleveland Twist Drill Co Div of Greenfield Industries Inc |
| 537.9687 | 5/9 Secondary reference Lavallee & Ide Inc |
| B94.2-1971 TABLE 19 | 5/9 Secondary reference U.S. Government activity |
| 31262 | 5/9 Secondary reference Lear Siegler Inc National Twist Drill and Tool Div |
| 681-429B | 5/9 Secondary reference Colt Industries Operating Corp Pratt and Whitney Machine Tool Div |
| ANSI-B94.2 | 5/9 Secondary reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| 1654-024-31/32 | 5/9 Secondary reference Morse Cutting Tools Div of Morse Cutting Tool Corp |
| GGG-R-180 | 5/9 Secondary reference U.S. Government activity |
| 21875 | 5/9 Secondary reference Morse Cutting Tools Div of Morse Cutting Tool Corp |
| 31262 | 5/9 Secondary reference Standard Tool Co Div of Lear Siegler Inc |
| 37364 | 5/9 Secondary reference Cleveland Twist Drill Co Div of Greenfield Industries Inc |
| ASME B94.2 | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
| 612-31 | 5/9 Secondary reference Cleveland Twist Drill Co Div of Greenfield Industries Inc |
| 20662 | 5/9 Secondary reference Colt Industries Operating Corp Pratt and Whitney Machine Tool Div |
NSN 3455-00-260-3324 is a Reamer,machine, manufactured by New York Twist Drill Inc, classified under FSC 3455, Cutting Tools for Machine Tools. Status: active.
NSN 3455-00-260-3324 has 11 manufacturer part numbers on file: 612-31 (Kennametal Inc. Div Kennametal Industrial Products Group), 5531-0250 (New York Twist Drill Inc), 712-042167 (Doall Baltimore Company), 4035-0968 (Kennametal Inc. Div Kennametal Industrial Products Group), 50-10163 (Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039) and 6 more.
Key specifications for 5531-0250: Flute Design: SPIRAL; Helix Direction: RIGHT-HAND; Flute Cut Direction: RIGHT-HAND; Shank Type: MORSE TAPER. 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.