Part Details | AUDIO LEVEL METER
6625-00-856-2938 An instrument which measures the ratio of electrical power with reference to a predetermined value and is calibrated in units of sound intensity, usually decibels. The value may be expressed by means of a pointer and calibrated dial or a digital readout display. If other than audio frequency ranges, see METER, NOISE LEVEL.
Alternate Parts: 481961, 481-961, 6625-00-856-2938, 00-856-2938, 6625008562938, 008562938
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1962 | 00-856-2938 | 16456 ( METER, AUDIO LEVEL ) |
REFERENCE DRAWINGS & PICTURES
SIX HOLE/STUD BOLT CIRCLE
ROUND FLUSH MTG
Cross Reference | NSN 6625-00-856-2938
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 481-961 | 28569 | HICKOK INCORPORATED |
Technical Data | NSN 6625-00-856-2938
| Characteristic | Specifications |
|---|---|
| INSTALLATION DESIGN | PANEL |
| INDICATOR TYPE | DIAL W/POINTER |
| MOVEMENT TYPE | MOVING COIL, PERMANENT MAGNET |
| MOVEMENT SUSPENSION METHOD | JEWEL PIVOT BASE |
| CIRCUIT ATTACHMENT METHOD AND QUANTITY | 2 SOLDER LUG |
| CIRCUIT CURRENT FOR WHICH DESIGNED | DC |
| STYLE DESIGNATOR | ROUND FLUSH MTG |
| METER BODY DIAMETER BEHIND MOUNTING FLANGE | 3.500 INCHES NOMINAL |
| METER DEPTH BEHIND MOUNTING FLANGE | 1.500 INCHES NOMINAL |
| OVERALL DIAMETER | 4.500 INCHES NOMINAL |
| OVERALL LENGTH | 2.094 INCHES NOMINAL |
| MOUNTING FACILITY TYPE AND QUANTITY | 1 FLANGE AND 6 UNTHREADED HOLE |
| MOUNTING HOLE DIAMETER | 0.153 INCHES MINIMUM AND 0.157 INCHES MAXIMUM |
| MOUNTING ARRANGEMENT STYLE | SIX HOLE/STUD BOLT CIRCLE |
| MOUNTING BOLT CIRCLE DIAMETER | 4.114 INCHES MINIMUM AND 4.134 INCHES MAXIMUM |
| MATERIAL | STEEL |
| NUCLEAR HARDNESS CRITICAL FEATURE | |
| ENVIRONMENTAL PROTECTION | SHOCK RESISTANT AND VIBRATION RESISTANT |
| SPECIAL MARKINGS | RED LINE AT 130 DB; SOURCE LEVEL DB/LUB WRITTEN ABOVE THE SCALE; NOISE LEVEL SET TO RED LINE WRITTEN BELOW THE SCALE |
| FEATURES PROVIDED | KNIFE EDGE POINTER |
| SPECIAL FEATURES | RUGGEDIZED |
| SPECIAL TEST FEATURES | IAW MIL-M-10304 |
| RELIABILITY INDICATOR | NOT ESTABLISHED |
| FSC APPLICATION DATA | TEST SET,ELECT. EQUIP. |
| FUNCTIONAL DESCRIPTION | USED TO MEASURE SOUND LEVELS |