31416: O-RING.
6 progressive games. The child starts by counting the elements on a card, then looks for the missing number in the operation, and finally the result of the addition. The cards are self - correcting.
Children also play together at lotto - memo, placing additions and subtractions with number tokens. Calculation becomes familiar and calculation logic progresses through play. This part is cataloged in the U.S.
Government catalog under NSN 7490-00-955-8355, indicating validated use in U.S. government and defense logistics supply chains.
| width | 2.000 INCHES NOMINAL IN |
| length | 2.000 INCHES NOMINAL IN |
| part_name_assigned_by_controlling_agency | GAUZE HEMOSTATIC ACT CEL 2IN X 2IN 20S IN |
| NSN | 7490-00-955-8355 |
No substitute or cross-reference records for this part.