Memo sensory puzzle game. Use the board to place, in the order you prefer, the 9 pieces with the engraved sensory shapes. Then, out of the board, flip or face down the other nine engraved pieces that are twins.
The purpose of the game is to match the different pieces on the board, using the sensory stimulation. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-207-5679, indicating validated use in U.S. government and defense logistics supply chains.
| diameter | 0.500 INCHES NOMINAL IN |
| material | STEEL |
| body_style | ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE |
| cut_length | 2.000 INCHES NOMINAL IN |
| head_style | ROUND |
| shank_type | STRAIGHT |
| body_length | 1.875 INCHES NOMINAL IN |
| design_form | SINGLE END |
| head_height | 0.107 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN |
| flute_design | HELICAL |
| power_rating | 2.0 WATTS AVERAGE |
| thread_class | 2A A |
| NSN | 5305-00-207-5679 |
| FASTENER LENGTH | 0.312 INCHES NOMINAL IN |
| HEAD HEIGHT | 0.107 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN |
| INTERNAL DRIVE STYLE | SLOT |
| THREAD LENGTH | 0.312 INCHES MAXIMUM IN |
| SCREW MATERIAL | STEEL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 2A A |
| HEAD STYLE | ROUND |
| THREAD QUANTITY PER INCH | 32 |
| NOMINAL THREAD DIAMETER | 0.164 INCHES IN |