575-229 BACK UP RING 90URE-2.375X1/8-C/S(10)
575-230 BACK UP RING 90URE-2.5X1/8-C/S(10)
575-231 BACK UP RING 90URE-2.625X1/8-C/S(10)
575-237 BACK UP RING 90URE-3.375X1/8-C/S(5)
575-239 BACK UP RING 90URE-3.625X1/8-C/S(5)
575-239ST BACK UP RING TFE-3.625X1/8-C/S(2)
575-240 BACK UP RING 90URE-3.75X1/8-C/S(5)
575-241 BACK UP RING 90URE-3.875X1/8-C/S(5)
575-242 BACK UP RING 90URE-4X1/8-C/S(5)
575-246 BACK UP RING 90URE-4.5X1/8-C/S(5)