The 301TYPE21B is a the manufacturer industrial component. Key specifications include color: UNABLE TO DECODE, material: PLASTIC, movement_type: MOVING COIL, PERMANENT MAGNET, overall_diameter: 3.500 INCHES NOMINAL IN, style_designator: ROUND FLUSH MTG, measurement_range: -10.0 TO 6.0 DECIBELS SINGLE INDICATOR SINGLE RANGE. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6625-00-669-1207, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.
Verify compatibility with your specific system configuration before ordering.
| color | UNABLE TO DECODE |
| material | PLASTIC |
| movement_type | MOVING COIL, PERMANENT MAGNET |
| overall_diameter | 3.500 INCHES NOMINAL IN |
| style_designator | ROUND FLUSH MTG |
| measurement_range | -10.0 TO 6.0 DECIBELS SINGLE INDICATOR SINGLE RANGE |
| accuracy_in_percent | -5.0 TO 5.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| installation_design | PANEL |
| mounting_hole_diameter | 0.125 INCHES NOMINAL IN |
| dial_scale_marking_color | BLACK SINGLE INDICATOR SINGLE RANGE |
| mounting_arrangement_style | THREE HOLE/STUD BOLT CIRCLE |
| mounting_bolt_circle_diameter | 3.060 INCHES NOMINAL IN |
| NSN | 6625-00-669-1207 |
| MOUNTING ARRANGEMENT STYLE | THREE HOLE/STUD BOLT CIRCLE |
| METER DEPTH BEHIND MOUNTING FLANGE | 0.970 INCHES NOMINAL IN |
| COLOR | UNABLE TO DECODE |
| METER BODY DIAMETER BEHIND MOUNTING FLANGE | 2.750 INCHES NOMINAL IN |
| MOUNTING BOLT CIRCLE DIAMETER | 3.060 INCHES NOMINAL IN |
| DIAL SCALE MARKING COLOR | BLACK SINGLE INDICATOR SINGLE RANGE |
| MOUNTING FACILITY TYPE AND QUANTITY | 3 UNTHREADED HOLE(S) |
| ACCURACY IN PERCENT | -5.0 TO 5.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE |
| MOVEMENT TYPE | MOVING COIL, PERMANENT MAGNET |
| MOUNTING HOLE DIAMETER | 0.125 INCHES NOMINAL IN |