The Scale,cathode Ray Tube, cataloged under National Stock Number 6625-00-643-7993, 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 8 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6625-00-643-7993 |
| Item Name | Scale,cathode Ray Tube |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Status | ACTIVE |
| Scale Quantity | 2 |
| FSC Application Data | TEST SET |
| Overall Diameter | 5.250 INCHES NOMINAL IN |
| Overall Thickness | 0.063 INCHES NOMINAL IN |
| Scale Type | HORIZONTAL AND VERTICAL |
| Scale Division Quantity | 46 AND 31 |
| Mounting Configuration | TWO 7/16 IN. DIA MTG HOLES SPACED ON 3.062 IN. RADIUS 104 DEG APART IN |
| Material | PLASTIC METHYL METHACRYLATE SCALE |
| 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 |
| Weight | 0.1000 lbs |
| Cube | 0.0674 cu ft |
| Reference | Meaning |
|---|---|
| C51768 | 3/9 Design control — primary reference Mutron Corp |
| C851768 | 5/2 Secondary reference U.S. Government activity |
| 2396-231 | C/1 Advisory reference — outside the item-of-supply concept O'brien Gear Co |
NSN 6625-00-643-7993 is a Scale,cathode Ray Tube, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
Key specifications for 6625-00-643-7993: Scale Quantity: 2; FSC Application Data: TEST SET; Overall Diameter: 5.250 INCHES NOMINAL IN; Overall Thickness: 0.063 INCHES NOMINAL IN. 8 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.