The Electron Tube, cataloged under National Stock Number 5960-00-066-2566, 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 Viavi Solutionsllc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5960-00-066-2566 |
| Primary Part Number | 12E1 |
| Item Name | Electron Tube |
| FSC / FSG | 5960 / 59 — Electron Tubes and Associated Hardware |
| Manufacturer | Viavi Solutionsllc |
| Status | ACTIVE |
| Tube Type | TETRODE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 12E1 PRIMARY | Viavi Solutionsllc (USA) |
| Reference | Meaning |
|---|---|
| 12E1 | 5/9 Secondary reference Marconi Electronics Inc Marconi Instruments Div |
| 12E1 | 5/9 Secondary reference Rca Corp Distributor and Special Products Div |
| 12E1 | 5/9 Secondary reference Rca Corp Distribution and Special Products |
NSN 5960-00-066-2566 is a Electron Tube, manufactured by Viavi Solutionsllc, classified under FSC 5960, Electron Tubes and Associated Hardware. Status: active.
NSN 5960-00-066-2566 has 1 manufacturer part number on file: 12E1 (Viavi Solutionsllc).
2 possible matches (shared part number, not a government interchangeability claim): 5905-00-836-1474, 3433-01-158-2822. Verify interchangeability with system specifications before substitution.
Key specifications for 12E1: Tube Type: TETRODE. 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 5960-00-066-2566 has DEMIL Code Q. 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.