The Mandrel,roller Tube Expander, cataloged under National Stock Number 3456-00-640-3265, is classified within Federal Supply Class 3456 (Cutting and Forming Tools for Secondary Metalworking Machinery) of the Metalworking Machinery (continued) group. The manufacturer of record is Derbyshire Machine & Tool Co. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3456-00-640-3265 |
| Primary Part Number | 87-D-286 |
| Item Name | Mandrel,roller Tube Expander |
| FSC / FSG | 3456 / 34 — Cutting and Forming Tools for Secondary Metalworking Machinery |
| Manufacturer | Derbyshire Machine & Tool Co |
| Status | ACTIVE |
| Hand Turning Rod | NOT INCLUDED |
| Square Shank Length | 0.750 INCHES NOMINAL IN |
| Drive Type | SQUARE |
| Taper Major Diameter | 0.390 INCHES NOMINAL IN |
| Size Designator | 0.500 INCHES NOMINAL IN |
| Operation Method | MANUAL OR POWER |
| 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 |
|---|---|
| 87-D-286 | Derbyshire Machine & Tool Co (USA) |
| M4 3-8-281DIA | Babcock & Wilcox Co (USA) |
| Reference | Meaning |
|---|---|
| F1385500DESIGNATI0NM4 3-8 0-281 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3456-00-640-3265 is a Mandrel,roller Tube Expander, manufactured by Derbyshire Machine & Tool Co, classified under FSC 3456, Cutting and Forming Tools for Secondary Metalworking Machinery. Status: active.
NSN 3456-00-640-3265 has 2 manufacturer part numbers on file: 87-D-286 (Derbyshire Machine & Tool Co), M4 3-8-281DIA (Babcock & Wilcox Co).
Key specifications for 87-D-286: Hand Turning Rod: NOT INCLUDED; Square Shank Length: 0.750 INCHES NOMINAL IN; Drive Type: SQUARE; Overall Length: 4.375 INCHES NOMINAL IN. 6 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.