a supply of hand pump nut bolt (non rc) as per specification of following size 1 hex bolt m 12x1.75x40 mm rs.. 2 hex nut m 12x1.75 mm rs.. 3 hex nylock nut 10x1.5 mm rs.. 4 hex chain bolt 10x1.5x40 mm rs.. b supply of hand pump ball bearing as per departmental specification. 1 6204 z rs.. c supply of rubber ring as per specification of following size 1 63 mm rs.. 2 75 mm rs.. 3 90 mm rs.. 4 110 mm rs.. 5 140 mm rs.. 6 200 mm rs.. 7 80 mm rs.. 8 100 mm rs.. 9 125 mm rs.. 10 150 mm rs.. 11 200 mm rs.. d supply of pit valve as per specification of following size 1 32 mm rs.. 2 50 mm rs.. 3 65 mm rs..