supply of bogie mounted air brake cylinderbogie mounted air brake cylinder,203.2 mm x 95.25 mm [8 inch x 3.3/4 inch] bogie mounted air brake cylinder wit h slack adjuster to rdso drg. no..sk.81057 alt-11.item no.2 with working stroke 40 mm.[t he cylinder body to rdso sketch no 81201 air inlet and exhaust position should be 180 d egree apart on verticle centre line i.e. top and bottom side]. note: the material specifica tion for piston packing (mentioned at item no. 3 in rdso sketch no. 81200/ item no.10 in rd so 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. [ wa rranty period: 30 months after the date of delivery ] ]