The Electron Tube-Quartz Cell Set, cataloged under National Stock Number 5840-00-937-9239, is classified within Federal Supply Class 5840 (Radar Equipment, Except Airborne) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is L3harris Technologies, Inc Div Space & Airborne Systems. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5840-00-937-9239 |
| Primary Part Number | 180563 |
| Item Name | Electron Tube-Quartz Cell Set |
| FSC / FSG | 5840 / 58 — Radar Equipment, Except Airborne |
| Manufacturer | L3harris Technologies, Inc Div Space & Airborne Systems |
| Status | ACTIVE |
| General Characteristics Item Description | GAS SWITCHING TYPE TUBE,MARKED WITH NUMBER GIB 180563,INCLUDESFOUR REPLACEABLE QUARTZ CELLS PER ITT GILFILLAN SPECIFICATION 1242948.225 IN. OVERALL LG IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 180563 PRIMARY | L3harris Technologies, Inc Div Space & Airborne Systems (USA) |
| Reference | Meaning |
|---|---|
| MIL-E-1/1721TYPED0D- | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5840-00-937-9239 is a Electron Tube-Quartz Cell Set, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 5840, Radar Equipment, Except Airborne. Status: active.
NSN 5840-00-937-9239 has 1 manufacturer part number on file: 180563 (L3harris Technologies, Inc Div Space & Airborne Systems).
Key specifications for 180563: General Characteristics Item Description: GAS SWITCHING TYPE TUBE,MARKED WITH NUMBER GIB 180563,INCLUDESFOUR REPLACEABLE QUARTZ CELLS PER ITT GILFILLAN SPECIFICATION 1242948.225 IN. OVERALL LG IN. 1 specification is documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5840-00-937-9239 has DEMIL Code D. 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.