The Expander,tube Plug, cataloged under National Stock Number 3441-00-580-0667, is classified within Federal Supply Class 3441 (Bending and Forming Machines) of the Metalworking Machinery (continued) group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 3441-00-580-0667 |
| Item Name | Expander,tube Plug |
| FSC / FSG | 3441 / 34 — Bending and Forming Machines |
| Status | ACTIVE |
| 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 |
|---|---|
| 73388 | 3/9 Design control — primary reference Thomas C. Wilson, Inc. Dba Thomas C Wilson |
| Y3388 | 5/9 Secondary reference Thomas C. Wilson, Inc. Dba Thomas C Wilson |
NSN 3441-00-580-0667 is a Expander,tube Plug, classified under FSC 3441, Bending and Forming Machines. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 5945-00-954-5051, 5930-01-053-5176, 4320-01-462-4428. Verify interchangeability with system specifications before substitution.
Key specifications for 3441-00-580-0667: End Item Identification: THOMAS C. WILSON MODELY3390 PERMANENT PLUG EXPANDER. 0 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.