MRC:
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.FEAT
Special Features:
Installed in vapor plumbing as a safety device to relieve pressure or vacuum build up when vapor system is blocked during loading/unloading; 4 in. Ttma aluminum flange mounting; buna seals; vent consists of 1 body part no. Vrp3500-1, 1 basket base part no. Vrp3500-2, 1 gasket part no. Vrv3501-3, 1 bushing part no. Vrp3500-4, 1 spring retainer part no. Vrv3501-5, 1 shaft for vrp3500 part no. Vrp3501-6, 1 shaft for vrp3600 part no. 390552, 1 pin part no. Pin 3/16x1/s/ss, 1 spring part no. Sprg/l4506, 1 screw part no. Sc5/16ncx.75fss
