The GENERATOR,ENGINE ACCESSORY is a TERRA industrial component. Key specifications include pilot_height: 0.390 INCHES NOMINAL IN, thread_length: 0.450 INCHES NOMINAL IN, thread_series: UNIFIED NATIONAL COARSE (UNC), mounting_style: FLANGE MTD W/TWO MTG HOLES, TOP HOLE THREADED, submersibility: NONSUBMERSIBLE, thread_diameter: 0.625 INCHES NOMINAL IN. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System under NSN 2920-00-137-1958, 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.
| pilot_height | 0.390 INCHES NOMINAL IN |
| thread_length | 0.450 INCHES NOMINAL IN |
| thread_series | UNIFIED NATIONAL COARSE (UNC) |
| mounting_style | FLANGE MTD W/TWO MTG HOLES, TOP HOLE THREADED |
| submersibility | NONSUBMERSIBLE |
| thread_diameter | 0.625 INCHES NOMINAL IN |
| special_features | HEX HOLE IN SHAFT END |
| thread_direction | RIGHT-HAND |
| voltage_in_volts | 12.0 |
| rectifier_location | SEPARATE |
| ground_polarity_type | NEGATIVE |
| second_step_diameter | 0.668 INCHES MINIMUM AND 0.669 INCHES MAXIMUM IN |
| NSN | 2920-00-137-1958 |
| THREAD LENGTH | 0.450 INCHES NOMINAL IN |
| SECOND STEP DIAMETER | 0.668 INCHES MINIMUM AND 0.669 INCHES MAXIMUM IN |
| UNTHREADED PORTION LENGTH | 0.740 INCHES MINIMUM AND 0.840 INCHES MAXIMUM IN |
| THREAD SERIES | UNIFIED NATIONAL COARSE (UNC) |
| DISTANCE BETWEEN SHAFT CENTER AND TOP MOUNTING HOLE CENTER | 3.330 INCHES NOMINAL IN |
| SHAFT ROTATION DIRECTION | CLOCKWISE OR COUNTERCLOCKWISE |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| MOUNTING HOLE THREAD DIAMETER | 0.312 INCHES NOMINAL IN |
| ANGULAR DEVIATION OF SECOND HOLE FROM FIRST HOLE IN DEG | 180.0 |
| MOUNTING HOLE THREAD QUANTITY PER INCH | 18 |