This listing is for ten (10)  high quality (made in Taiwan)  

Tension nut  #43266 (#G43266)

sold in pack of 10 (ten) pieces.  

for  Union Special & Newlong  Bag Sewing Machine 

for  Union Special  34800, 56100, 56300, 80000 series

for Newlong/NLI     DKN-1, DKN-2, DKN-3 series