supply of 203.2 mm x 95.25 mm [ 8 inch x 3.3 / 4 inch ] bogie mounted air brake cylinder with slack adjuster to rdso drg. no..sk.81057 alt-11.item no.2 with working stroke 40 mm. [ the cylinder body to rdso sketch no 81201 air inlet and exhaust position should be 180 degree apart on verticle centre line i.e. top and bottom side ] . note: the material specification for piston packing ( mentioned at item no. 3 in rdso sketch no. 81200 / item no.10 in rdso sketch no. 81204 ) should be made from polyurethane rubber ( compound-d, hardness- 85 plus / minus 5 shore-a ) . confirming to rdso specification no. rp / 115-1984 or latest. [ warranty period: 30 months after the date of delivery ] => limited