weld base boss with ring groove mrc cwfr is the distance from the o.d. of the pipe the boss is mounted on to the end of the boss; mrc acsu is the pipe size the boss can be used on, pipe size range is ips 4-36 in. plain
Used on contractor logistics lifetime support (crls), roller, vibratory, self-propelled, type 11, caterpillar model cs-563d, contract no. daae07-98-c-s007, nsn 3895-01-456-2735, tm5-3895-383.
