The 21508-2 is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, end_similarity: NOT IDENTICAL, overall_length: 9.875 INCHES NOMINAL IN, surface_finish: 25.0 MICROINCHES, first_end_style: CIRCULAR GROOVED, second_end_style: CIRCULAR GROOVED. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6625-00-007-5956, 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.
| material | NICKEL ALLOY |
| step_quantity | 4 |
| end_similarity | NOT IDENTICAL |
| overall_length | 9.875 INCHES NOMINAL IN |
| surface_finish | 25.0 MICROINCHES |
| first_end_style | CIRCULAR GROOVED |
| second_end_style | CIRCULAR GROOVED |
| first_end_diameter | 1.7720 INCHES NOMINAL IN |
| second_end_diameter | 2.5310 INCHES NOMINAL IN |
| largest_step_diameter | 3.786 INCHES NOMINAL IN |
| first_end_groove_width | 0.1090 INCHES NOMINAL IN |
| second_end_groove_width | 0.1090 INCHES NOMINAL IN |
| NSN | 6625-00-007-5956 |
| METER BODY DIAMETER BEHIND MOUNTING FLANGE | 2.800 INCHES MAXIMUM IN |
| METER DEPTH BEHIND MOUNTING FLANGE | 1.660 INCHES MAXIMUM IN |
| MOUNTING FACILITY TYPE AND QUANTITY | 3 UNTHREADED HOLE(S) |
| MOVEMENT TYPE | MOVING IRON VANE |
| CIRCUIT ATTACHMENT METHOD AND QUANTITY | 2 THREADED STUD |
| MEASUREMENT RANGE | -2.5 TO 2.5 MILLIAMPERES, DC SECOND INDICATOR SECOND RANGE |
| OVERALL LENGTH | 2.820 INCHES MAXIMUM IN |
| STYLE DESIGNATOR | ROUND FLUSH MTG |
| MOUNTING BOLT CIRCLE DIAMETER | 3.160 INCHES NOMINAL IN |
| MOUNTING ARRANGEMENT STYLE | THREE HOLE/STUD BOLT CIRCLE |