MRC:
A feature of the item of supply which must be specifically recorded when the reference number covers a range of items.ZZZY
Reference Number Differentiating Characteristics:
Size 3 in Valve kit consisting of 2 - no 2, gasket cover plate 1 - no 3 spring main valve 1 - no 8, spring check valve 2 - no 11, spring main and check valve 2 - no 14, disc upper and lower relief valve 1 - no 16, spring relief valve 1 - no 18, diaphragm /set/ 1 - no 21, gasket clamp bolt 1 - no 25, gasket relief valve housing