The Electron Tube, cataloged under National Stock Number 5960-00-445-2580, 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 Unisys Corporation Dba Unisys Corp. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5960-00-445-2580 |
| Primary Part Number | B5866ST |
| Item Name | Electron Tube |
| FSC / FSG | 5960 / 59 — Electron Tubes and Associated Hardware |
| Manufacturer | Unisys Corporation Dba Unisys Corp |
| Status | ACTIVE |
| 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 |
|---|---|
| B5856ST | Unisys Corporation Dba Unisys Corp (USA) |
| B5866ST PRIMARY | Unisys Corporation Dba Unisys Corp (USA) |
| Reference | Meaning |
|---|---|
| DMS 83010 B | 5/9 Secondary reference Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
| 272922 | 5/2 Secondary reference U.S. Government activity |
NSN 5960-00-445-2580 is a Electron Tube, manufactured by Unisys Corporation Dba Unisys Corp, classified under FSC 5960, Electron Tubes and Associated Hardware. Status: active.
NSN 5960-00-445-2580 has 2 manufacturer part numbers on file: B5856ST (Unisys Corporation Dba Unisys Corp), B5866ST (Unisys Corporation Dba Unisys Corp).
1 possible match (shared part number, not a government interchangeability claim): 5130-01-649-7295. Verify interchangeability with system specifications before substitution.
Key specifications for B5866ST: Special Features: ENVELOPE MATERIAL: GLASS; MFG CLASS: PLUS-MINUS INDICATOR. 0 specifications are 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 5960-00-445-2580 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.