Used on 1670-01-609-0728. 2b thread class right-hand 28 thread quantity per inch nut, nylon insert, 1/4-28, grade 5, zinc pltd specific matl is sae grade 5, zinc plated zinc except insert surface treated
Used on nsn 2355-01-559-0791. 2b thread class right-hand 10 thread quantity per inch nut, self-locking, hexagon all-metal locking feature oxide surface treated