The CAGE Assembly,roller Tube Expand, cataloged under National Stock Number 3456-00-640-2971, 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 7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3456-00-640-2971 |
| Item Name | CAGE Assembly,roller Tube Expand |
| FSC / FSG | 3456 / 34 — Cutting and Forming Tools for Secondary Metalworking Machinery |
| Status | ACTIVE |
| CAGE Adjustability | NONADJUSTABLE |
| Nondefinitive Spec/std Data | 1 TYPE AND 1 CLASS |
| Entering Handhole Size | 3.781 BY 4.719 IN. IN |
| Tube Sheet Maximum Thickness | 1.000 INCHES IN |
| Tube Minimum Inside Diameter Accommodated | 4.071 INCHES IN |
| Rated Expansion Diameter | 4.350 INCHES IN |
| Roll Type and Quantity | 1 FLARING OR 2 LONG TAPERED OR 1 SHORT TAPERED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| F1385500PCC52SR52FR8LR52 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3456-00-640-2971 is a CAGE Assembly,roller Tube Expand, classified under FSC 3456, Cutting and Forming Tools for Secondary Metalworking Machinery. Status: active.
Key specifications for 3456-00-640-2971: CAGE Adjustability: NONADJUSTABLE; Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS; Entering Handhole Size: 3.781 BY 4.719 IN. IN; Tube Sheet Maximum Thickness: 1.000 INCHES IN. 7 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.
NSN 3456-00-640-2971 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.