Dimensions Hex head Plugs  NPS 1/2 - 4  according to ASME B16.11

NPS	Minimum Length E	Minimum Hex Height J	Nominal F
1/2	14	8	22
3/4	16	10	27
1	19	10	35
1 ¼	21	14	44.5
1 ½	21	16	51
2	22	18	63.5
2 ½	27	19	76
3	28	21	89
4	32	25	117.5

Dimensions are in millimeters unless otherwise indicated.

Dimensions Square head Plugs  NPS 1/2 - 4  according to ASME B16.11

NPS	Minimum Length E	Minimum Square Height C	Minimum Width Flats B
1/2	14	10	14
3/4	16	11	16
1	19	13	21
1 ¼	21	14	24
1 ½	21	16	28
2	22	18	32
2 ½	27	19	36
3	28	21	41
4	32	25	65

Dimensions are in millimeters unless otherwise indicated.

Dimensions Round head Plugs  NPS 1/2 - 4  according to ASME B16.11

NPS	Minimum Length A	Nominal Head Diameter D	Minimum Length E
1/2	44	21	14
3/4	44	27	16
1	51	33	19
1 ¼	51	43	21
1 ½	51	48	21
2	64	60	22
2 ½	70	73	37
3	70	89	28
4	76	114	32

Dimensions are in millimeters unless otherwise indicated.

Other dimensions of Threaded Fittings according to ASME B16.11

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