Metric Dimensions
150	300	400	600	900	1500	2500
Inch Dimensions
150	300	400	600	900	1500	2500

NPS	O	tf
1/2	3.50	0.38
3/4	3.88	0.44
1	4.25	0.50
1-1/4	4.62	0.56
1-1/2	5.00	0.62
2	6.00	0.69
2-1/2	7.00	0.81
3	7.50	0.88
3-1/2	8.50	0.88
4	9.00	0.88
5	10.00	0.88
6	11.00	0.94
8	13.50	1.06
10	16.00	1.12
12	19.00	1.19
NPS	O	tf
14	21.00	1.31
16	23.50	1.38
18	25.00	1.50
20	27.50	1.62
24	32.00	1.81

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Templates for drilling of bolt holes

NPS	BCD	BHD	BOLTS	BD
1/2	2.38	5/8	4	1/2
3/4	2.75	5/8	4	1/2
1	3.12	5/8	4	1/2
1-1/4	3.50	5/8	4	1/2
1-1/2	3.88	5/8	4	1/2
2	4.75	3/4	4	5/8
2-1/2	5.50	3/4	4	5/8
3	6.00	3/4	4	5/8
3-1/2	7.00	3/4	8	5/8
4	7.50	3/4	8	5/8
5	8.50	7/8	8	3/4
6	9.50	7/8	8	3/4
8	11.75	7/8	8	3/4
10	14.25	1	12	7/8
12	17.00	1	12	7/8
NPS	BCD	BHD	BOLTS	BD
14	18.75	1-1/8	12	1
16	21.25	1-1/8	16	1
18	22.75	1-1/4	16	1-1/8
20	25.00	1-1/4	20	1-1/8
24	29.50	1-3/8	20	1-1/4

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NPS	SBL RFY	SBL RJ	MBL RF
1/2	2.25	NA	2.00
3/4	2.50	NA	2.00
1	2.50	3.00	2.25
1-1/4	2.75	3.25	2.25
1-1/2	2.75	3.25	2.50
2	3.25	3.75	2.75
2-1/2	3.50	4.00.	3.00
3	3.50	4.00	3.00
3-1/2	3.50	4.00	3.00
4	3.50	4.00	3.00
5	3.75	4.25	3.25
6	4.00	4.50	3.25
8	4.25	4.75	3.50
10	4.50	5.00	4.00
12	4.75	5.25	4.00
NPS	SBL RFY	SBL RJ	MBL RF
14	5.25	5.75	4.50
16	5.25	5.75	4.50
18	5.75	6.25	5.00
20	6.25	6.75	5.50
24	6.75	7.25	6.00

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Metric Dimensions
150	300	400	600	900	1500	2500
Inch Dimensions
150	300	400	600	900	1500	2500

General Notes

Dimensions are in millimeters, except for diameters of bolts and bolt holes, which are in inch units.