The Filter,light,cathode Ray Tube, cataloged under National Stock Number 6625-00-643-7520, is classified within Federal Supply Class 6625 (Electrical and Electronic Properties Measuring and Testing Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-00-643-7520 |
| Item Name | Filter,light,cathode Ray Tube |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Status | ACTIVE |
| FSC Application Data | OSCILLOSCOPE |
| Trade Designation | WRATTEN NO. 50 OR 58 |
| Viewing Surface Overall Diameter | 5.219 INCHES MINIMUM AND 5.250 INCHES MAXIMUM IN |
| Viewing Surface Overall Thickness | 0.063 INCHES NOMINAL IN |
| Color | GREEN |
| Material | PLASTIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | J |
| Reference | Meaning |
|---|---|
| C851769 | 5/2 Secondary reference U.S. Government activity |
| C51769ALTB | 3/9 Design control — primary reference Mutron Corp |
NSN 6625-00-643-7520 is a Filter,light,cathode Ray Tube, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
Key specifications for 6625-00-643-7520: FSC Application Data: OSCILLOSCOPE; Trade Designation: WRATTEN NO. 50 OR 58; Viewing Surface Overall Diameter: 5.219 INCHES MINIMUM AND 5.250 INCHES MAXIMUM IN; Viewing Surface Overall Thickness: 0.063 INCHES NOMINAL IN. 6 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.
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.