The Electron Tube, cataloged under National Stock Number 5960-01-111-3901, is classified within Federal Supply Class 5960 (Electron Tubes and Associated Hardware) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Siemens Schweiz Ag Dba Siemens Switzerland Ltd.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5960-01-111-3901 |
| Primary Part Number | V3221Z4X1 |
| Item Name | Electron Tube |
| FSC / FSG | 5960 / 59 — Electron Tubes and Associated Hardware |
| Manufacturer | Siemens Schweiz Ag Dba Siemens Switzerland Ltd. |
| Status | ACTIVE |
| Tube Type | TRANSMIT-RECEIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| V3221Z4X1 | Siemens Schweiz Ag Dba Siemens Switzerland Ltd. (CHE) |
| VDU-1087 | Communications & Power Industries International Inc. Zweigniederlassung Ismaning (DEU) |
| Reference | Meaning |
|---|---|
| VDU-1087 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5960-01-111-3901 is a Electron Tube, manufactured by Siemens Schweiz Ag Dba Siemens Switzerland Ltd., classified under FSC 5960, Electron Tubes and Associated Hardware. Status: active.
NSN 5960-01-111-3901 has 2 manufacturer part numbers on file: V3221Z4X1 (Siemens Schweiz Ag Dba Siemens Switzerland Ltd.), VDU-1087 (Communications & Power Industries International Inc. Zweigniederlassung Ismaning).
Key specifications for V3221Z4X1: Tube Type: TRANSMIT-RECEIVE; Special Features: ENVELOPE MATERIAL: METAL. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5960-01-111-3901 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.