Used on himars, rsv, mk37, 2320-01-504-5218. 17.9mm center hole diameter o-ring nha is nipple, pipe, p/n 499-1662; section measurement is 2.62 mm ; for bspp thread size 1/2
Used on loader, scoop. seal-o-ring hydraulic system 209-0271 valve gp - main control; s/n WMB1-up, 3 function, part of 203-3891, 225-5163 hydraulic ar-3 valve