Model	Part Name	Thickness (mm)	Type	Dish (mm)	Centre Hole (mm)	Unit (kg)	Applications
itc2004p51-2730sq	20 x 4mm plain disc	4	p	51	27 30 sq	6 1	BNL, CN, DH, HB, JA, MF, SH
itc2004s51-2730sq	20 x 4mm scalloped labrador disc	4	s	51	27 30 sq	5 6	BNL, CS, JA, MF, SH
itc2004s51-2730sq-fb	20 x 4mm scalloped disc flatback	4	s	51	27 30 sq flatback	5 6	MF
itc2005s51-2730sq	20 x 5mm scalloped disc	5	s	51	27 30 sq	7 2	BNL, CS, JA, MF, SH