Block and tackle

Question

The stamp number is 27F Its for a friend and I don't know what the plastic ends look like. He needs 3 units. The Channel measures 9/16th X 1/2 can you help me with this and any part numbers that may be relevant to this particular unit?

Casey · Accepted Answer

Thanks for posting. Although the stamp you have indicated does tell us the spring strength, it is unfortunately not enough information to identify the balance entirely. We would need to see the attachments at either end of the channel, as well as the hook or clip at the end of the pulley cord.