ANSI / ASME B16.5 Class 600 Slip On Flange Dimensions

Nominal Pipe Size	Outside Diameter (O)	Thickness (T)	Raised Face Diameter (R)	Length Thru Hub (Y)	Hub Diameter (X)	Bore (B)	Approximate Weight (lbs)	Bolt Circle (C)	Number of Holes	Diameter of Holes
1/2	3.75	0.56	1.38	0.88	1.50	0.88	2	2.63	4	0.63
3/4	4.63	0.63	1.69	1.00	1.88	1.09	3	3.25	4	0.75
1	4.88	0.69	2.00	1.06	2.13	1.36	4	3.50	4	0.75
1 1/4	5.25	0.81	2.50	1.13	2.50	1.70	5	3.88	4	0.75
1 1/2	6.13	0.88	2.88	1.25	2.75	1.95	7	4.50	4	0.88
2	6.50	1.00	3.63	1.44	3.31	2.44	9	5.00	8	0.75
2 1/2	7.50	1.13	4.13	1.63	3.94	2.94	13	5.88	8	0.88
3	8.25	1.25	5.00	1.81	4.63	3.57	16	6.63	8	0.88
3 1/2	9.00	1.38	5.50	1.94	5.25	4.07	21	7.25	8	1.00
4	10.75	1.50	6.19	2.13	6.00	4.57	37	8.50	8	1.00
5	13.00	1.75	7.31	2.38	7.44	5.66	63	10.50	8	1.13
6	14.00	1.88	8.50	2.63	8.75	6.72	80	11.50	12	1.13
8	16.50	2.19	10.63	3.00	10.75	8.72	115	13.75	12	1.25
10	20.00	2.50	12.75	3.38	13.50	10.88	170	17.00	16	1.38
12	22.00	2.63	15.00	3.63	15.75	12.88	200	19.25	20	1.38
14	23.75	2.75	16.25	3.69	17.00	14.14	230	20.75	20	1.50
16	27.00	3.00	18.50	4.19	19.50	16.16	330	23.75	20	1.63
18	29.25	3.25	21.00	4.63	21.50	18.18	400	25.75	20	1.75
20	32.00	3.50	23.00	5.00	24.00	20.20	510	28.50	24	1.75
22	34.25	3.75	25.25	5.25	26.25	22.22	590	30.63	24	1.88
24	37.00	4.00	27.25	5.50	28.25	24.25	730	33.00	24	2.00

*Use 25.4 as a factor to convert into mm.