6403 Straight Thread Union series part list

Part #	TUBE OD	B (1) UN/UNF-2A	B (2) UN/UNF-2A	L34	C4	D (1)	D (2)

6403-6-4-O	3/8-1/4	9/16-18	7/16-20	1.11	0.69	0.30	0.17
6403-6-6-O	3/8-3/8	9/16-18	9/16-18	1.13	0.69	0.30	0.30
6403-8-8-O	1/2-1/2	3/4-16	3/4-16	1.26	0.88	0.39	0.39
6403-10-8-O	5/8-1/2	7/8-14	3/4-16	1.38	1.00	0.48	0.39
6403-12-8-O	3/4-1/2	1 1/16-12	3/4-16	1.79	1.25	0.61	0.39
6403-12-12-O	3/4-3/4	1 1/16-12	1 1/16-12	1.68	1.25	0.61	0.61
6403-16-12-O	1-3/4	1 5/16-12	1 1/16-12	1.72	1.50	0.84	0.61
6403-20-20-O	1 1/4-1 1/4	1 5/8-12	1 5/8-12	1.79	1.88	1.08	1.08

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