CARTRIDGE,40 MILLIMETER,PRACTICE. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: SLOTTED, HEXAGON, nut_height: 0.250 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), hardness_rating: 27.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2010-00-461-4574, 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 | IRON ALLOY 660 OVERALL |
| nut_style | SLOTTED, HEXAGON |
| nut_height | 0.250 INCHES NOMINAL IN |
| thread_class | 3B |
| thread_series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| hardness_rating | 27.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM |
| thread_direction | RIGHT-HAND |
| surface_treatment | CADMIUM AND CHROMATE OVERALL |
| width_across_flats | 0.730 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN |
| nominal_thread_size | 0.500 INCHES IN |
| bearing_surface_type | WASHER FACED |
| thread_quantity_per_inch | 20 |
| NSN | 2010-00-461-4574 |
| END ITEM IDENTIFICATION | 1940000456307 |
| GENERAL CHARACTERISTICS ITEM DESCRIPTION | SAND CAP LIPSEAL,USED ON BOAT,PICKET,31 FT FT |