The Roll,roller Tube Expander, cataloged under National Stock Number 3456-00-640-3594, is classified within Federal Supply Class 3456 (Cutting and Forming Tools for Secondary Metalworking Machinery) of the Metalworking Machinery (continued) group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3456-00-640-3594 |
| Item Name | Roll,roller Tube Expander |
| FSC / FSG | 3456 / 34 — Cutting and Forming Tools for Secondary Metalworking Machinery |
| Status | ACTIVE |
| First End Taper Length | 0.375 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| First End Diameter | 0.456 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Second End Diameter | 0.419 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Style Designator | OVERLAPPING |
| Second End Taper Length | 0.062 INCHES NOMINAL IN |
| Main Body Overall Length | 2.375 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 1385500 E-97 | 3/2 Design control — primary reference U.S. Government activity |
| MIL-E-17624 | 4/1 Identification reference U.S. Government activity |
| 955-596-9LN58 | 5/9 Secondary reference Amec Foster Wheeler North America Corp. Dba Foster Wheeler |
NSN 3456-00-640-3594 is a Roll,roller Tube Expander, classified under FSC 3456, Cutting and Forming Tools for Secondary Metalworking Machinery. Status: active.
Key specifications for 3456-00-640-3594: First End Taper Length: 0.375 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN; First End Diameter: 0.456 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN; Second End Diameter: 0.419 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN; Style Designator: OVERLAPPING. 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.