Excel Metal part no.	Equivalent Part no. Type 1	Equivalent part no Type 2	Ø E	HEX F	UN/UNF MALE PIPE SIZE P	L	UN/UNF FEMALE PIPE SIZE P1
6 - PSA -7U	6 - RBST - 4	6 - 4 F5OG5	.297	11/16	7/16-20	1.03	9/16-18
8 - PSA -7U	8 - RBST - 4	8 - 4 F5OG5	.375	7/8	7/16-20	1.09	3/4-16
12 - PSA -12U	12 - RBST - 8	12 - 8 F5OG5	.625	1-1/4	3/4-16	1.00	1-1/16-12
21 - PSA -17U	16 - RBST - 12	16 - 4 F5OG5	.750	1-1/4	1/1/16	1.00	1-5/16-12

UNFM X NPTF

Excel Metal part no.	Equivalent Part no. Type 1	Equivalent part no Type 2	NPT FEMALE PIPE SIZE P1	Ø E	HEX F	SAE/MS MALE PIPE SIZE P	L
7U -PSA -4N	4SAE - 7-4	4- 4 GOA	1/4x18	0.2	3/4	7/16x20	1.19
9U -PSA -6N	6SAE - 7-6	6- 6 GOA	3/8x18	0.3	7/8	9/16x18	1.26
12U -PSA -8N	8SAE - 7-8	8- 8 GOA	1/2x14	0.39	1-1/16	3/4x16	1.5
17U -PSA -12N	12SAE - 7-12	12- 12 GOA	3/4x14	0.66	1-1/4	1-1/16x12	1.83
21U -PSA -16N	16SAE - 7-16	16- 16 GOA	1x11.5	0.88	1-5/8	1-5/16x12	1.88