O-Ring Boss Adapters | Transmission & Fluid Equipment, Inc.

At TFE – Transmission & Fluid Equipment we stock Brennan hydraulic adapters. The tables below show the styles and sizes we commonly stock. If you require a style or size not shown, please call our Customer Service Department for pricing and availability.

Female O-Ring x Male Pipe 6404 Series

wdt_ID	Part #	Thread B1	Thread A2	Length L	Hex C
1	6404-04-02	7/16-20	1/8-27	1.13	11/16
2	6404-04-04	7/16-20	1/4-18	1.32	11/16
3	6404-04-06	7/16-20	3/8-18	1.13	11/16
4	6404-05-02	1/2-20	1/8-27	1.37	3/4
5	6404-05-04	1/2-20	1/4-18	1.39	3/4
6	6404-06-04	9/16-18	1/4-18	1.39	7/8
7	6404-06-06	9/16-18	3/8-18	1.39	7/8
8	6404-06-08	9/16-18	1/2-14	1.42	7/8
9	6404-08-06	3/4-16	3/8-18	1.5	1
10	6404-08-08	3/4-16	1/2-14	1.7	1
11	6404-08-12	3/4-16	3/4-14	1.69	1 1/8
12	6404-10-06	7/8-14	3/8-18	1.62	1 1/4
13	6404-10-08	7/8-14	1/2-14	1.82	1 1/4
14	6404-10-12	7/8-14	3/4-14	1.72	1 1/8
15	6404-12-08	1 1/16-12	1/2-14	1.96	1 3/8
16	6404-12-12	1 1/16-12	3/4-14	1.96	1 3/8
17	6404-14-12	1 3/16-12	3/4-14	2.04	1 1/2
18	6404-16-12	1 5/16-12	3/4-14	2.06	1 5/8
19	6404-16-16	1 5/16-12	1-11 1/2	2.22	1 5/8
20	6404-16-20	1 5/16-12	1 1/4-11 1/2	1.9	2
21	6404-20-16	1 5/8-12	1-11 1/2	2.21	2
22	6404-20-20	1 5/8-12	1 1/4-11 1/2	2.34	2 1/8
23	6404-24-24	1 7/8-12	1 1/2-11 1/2	2.3	2 1/4
24	6404-32-32	2 1/2-12	2-11 1/2	2.66	2 7/8

Male O-Ring x Female Pipe 6405 Series

wdt_ID	Part #	Thread B1	Thread A2	Length L	Hex C
1	6405-04-02-O	7/16-20	1/8-27	0.968	9/16
2	6405-04-04-O	7/16-20	1/4-18	1.156	3/4
3	6405-04-06-O	7/16-20	3/8-18	1.21	7/8
4	6405-05-02-O	1/2-20	1/8-27	0.937	5/8
5	6405-05-04-O	1/2-20	1/4-18	1.16	3/4
6	6405-06-02-O	9/16-18	1/8-27	0.73	11/16
7	6405-06-04-O	9/16-18	1/4-18	1.15	3/4
8	6405-06-06-O	9/16-18	3/8-18	1.16	7/8
9	6405-06-08-O	9/16-18	1/2-14	1.4	1 1/8
10	6405-08-06-O	3/4-16	3/8-18	1.28	7/8
11	6405-08-08-O	3/4-16	1/2-14	1.44	1 1/8
12	6405-08-12-O	3/4-16	3/4-14	1.54	1 3/8
13	6405-10-06-O	7/8-14	3/8-18	1.55	1 1/8
14	6405-10-08-O	7/8-14	1/2-14	1.546	1 1/8
15	6405-10-12-O	7/8-14	3/4-14	1.66	1 3/8
16	6405-12-08-O	1 1/16-12	1/2-14	1.5	1 1/4
17	6405-12-12-O	1 1/16-12	3/4-14	1.59	1 3/8
18	6405-12-16-O	1 1/16-12	1-11 1/2	1.91	1 5/8
19	6405-14-12-O	1 3/16-12	3/4-14	1.593	1 3/8
20	6405-16-12-O	1 5/16-12	3/4-14	1.51	1 1/2
21	6405-16-16-O	1 5/16-12	1-11 1/2	1.843	1 5/8
22	6405-16-20-O	1 5/16-12	1 1/4-11 1/2	2.27	2
23	6405-20-16-O	1 5/8-12	1-11 1/2	1	1 7/8
24	6405-20-20-O	1 5/8-12	1 1/4-11 1/2	1.875	2
25	6405-20-24-O	1 5/8-12	1 1/2-11 1/2	2.28	2 3/8
26	6405-24-20-O	1 7/8-12	1 1/4-11 1/2	2.12	2 1/8
27	6405-24-24-O	1 7/8-12	1 1/2-11 1/2	2.14	2 3/8
28	6405-32-32-O	2 1/2-12	2-11 1/2	2.01	2 7/8

Male O-Ring Boss Plug 6408 Series

wdt_ID	Part #	Thread B1	Length L	Hex C
1	6408-02-O	5/16-24	0.6	7/16
2	6408-03-O	3/8-24	0.6	1/2
3	6408-04-O	7/16-20	0.67	9/16
4	6408-05-O	1/2-20	0.67	5/8
5	6408-06-O	9/16-18	0.73	11/16
6	6408-08-O	3/4-16	0.8	7/8
7	6408-10-O	7/8-14	0.94	1
8	6408-12-O	1 1/16-12	1.09	1 1/4
9	6408-14-O	1 3/16-12	1.09	1 3/8
10	6408-16-O	1 5/16-12	1.13	1 1/2
11	6408-20-O	1 5/8-12	1.2	1 7/8
12	6408-24-O	1 7/8-12	1.27	2 1/8
13	6408-32-O	2 1/2-12	1.44	2 3/4

Male O-Ring x Female O-Ring 6410 Series

wdt_ID	Part #	Thread B1	Thread B2	Length L	Hex C
1	6410-04-05-O	7/16-20	1/2-20	1.08	3/4
2	6410-04-06-O	7/16-20	9/16-18	1.16	13/16
3	6410-05-04-O	1/2-20	7/16-20	1.22	5/8
4	6410-06-04-O	9/16-18	7/16-20	1.03	11/16
5	6410-06-08-O	9/16-18	3/4-16	1.39	1 1/16
6	6410-08-04-O	3/4-16	7/16-20	0.81	7/8
7	6410-08-06-O	3/4-16	9/16-18	1.16	7/8
8	6410-08-10-O	3/4-16	7/8-14	1.48	1 1/8
9	6410-08-12-O	3/4-16	1 1/16-12	1.65	1 3/8
10	6410-10-06-O	7/8-14	9/16-18	0.94	1
11	6410-10-08-O	7/8-14	3/4-16	1.31	1
12	6410-10-12-O	7/8-14	1 1/16-12	1.66	1 3/8
13	6410-12-04-O	1 1/16-12	7/16-20	1.09	1 1/4
14	6410-12-06-O	1 1/16-12	9/16-18	1.09	1 1/4
15	6410-12-08-O	1 1/16-12	3/4-16	1.09	1 1/4
16	6410-12-10-O	1 1/16-12	7/8-14	1.56	1 1/4
17	6410-12-16-O	1 1/16-12	1 5/16-12	1.81	1 1/2
18	6410-12-20-O	1 1/16-12	1 5/8-12	2	2
19	6410-14-12-O	1 3/16-12	1 1/16-12	1.71	1 3/8
20	6410-14-16-O	1 3/16-12	1 5/16-12	1.75	1 1/2
21	6410-16-08-O	1 5/16-12	3/4-16	1.73	1 1/2
22	6410-16-10-O	1 5/16-12	7/8-14	1.13	1 1/2
23	6410-16-12-O	1 5/16-12	1 1/16-12	1.71	1 1/2
24	6410-16-14-O	1 5/16-12	1 3/16-12	1.71	1 1/2
25	6410-16-20-O	1 5/16-12	1 5/8-12	2.14	2 1/8
26	6410-20-12-O	1 5/8-12	1 1/16-12	1	1 7/8
27	6410-20-16-O	1 5/8-12	1 5/16-12	1.19	1 7/8
28	6410-20-24-O	1 5/8-12	1 7/8-12	1.89	2 1/4
29	6410-24-12-O	1 7/8-12	1 1/16-12	1	2 1/8
30	6410-24-16-O	1 7/8-12	1 5/16-12	1	2 1/8
31	6410-24-20-O	1 7/8-12	1 5/8-12	1.58	2 1/8
32	6410-32-24-O	2 1/2-12	1 7/8-12	1.44	2 3/4

Male O-Ring x Female Pipe-90 º 6805 Series

wdt_ID	Part #	Thread B1	Thread A2	Length N	Length L	Square Y
1	6805-04-02-NWO	7/16-20	1/8-27	0.66	1.09	5/8
2	6805-04-04-NWO	7/16-20	1/4-18	0.87	1.16	3/4
3	6805-05-02-NWO	1/2-20	1/8-27	0.66	1.13	5/8
4	6805-06-04-NWO	9/16-18	1/4-18	0.88	1.31	3/4
5	6805-06-06-NWO	9/16-18	3/8-18	1.01	1.36	7/8
6	6805-08-06-NWO	3/4-16	3/8-18	1.02	1.48	7/8
7	6805-08-08-NWO	3/4-16	1/2-14	1.24	1.59	1 1/8
8	6805-10-06-NWO	7/8-14	3/8-18	1.02	1.66	7/8
9	6805-10-08-NWO	7/8-14	1/2-14	1.23	1.8	1 1/8
10	6805-12-08-NWO	1 1/16-12	1/2-14	1.24	1.94	1 1/8
11	6805-12-12-NWO	1 1/16-12	3/4-14	1.36	2.06	1 3/8
12	6805-14-12-NWO	1 3/16-12	3/4-14	1.42	2.06	1 3/8
13	6805-16-12-NWO	1 5/16-12	3/4-14	1.37	2.03	1 3/8
14	6805-16-16-NWO	1 5/16-12	1-11 1/2	1.63	2.17	1 5/8
15	6805-20-20-NWO	1 5/8-12	1 1/4-11 1/2	1.7	2.38	2
16	6805-24-24-NWO	1 7/8-12	1 1/2-11 1/2	2.08	2.58	2 3/8
17	6805-32-32-NWO	2 1/2-12	2-11 1/2	2.39	3.02	2 7/8

Male O-Ring x Swivel Female Pipe 6900 Series

wdt_ID	Part #	Thread B1	Thread A2	Length L	Hex C
1	6900-04-02-O	7/16-20	1/8-27	1.06	9/16
2	6900-04-04-O	7/16-20	1/4-18	1.109	9/16
3	6900-04-06-O	7/16-20	3/8-18	1.15	11/16
4	6900-05-04-O	1/2-20	1/4-18	1.092	5/8
5	6900-06-04-O	9/16-18	1/4-18	1.062	11/16
6	6900-06-06-O	9/16-18	3/8-18	1.171	11/16
7	6900-06-08-O	9/16-18	1/2-14	1.234	7/8
8	6900-08-04-O	3/4-16	1/4-18	1.217	7/8
9	6900-08-06-O	3/4-16	3/8-18	1.234	7/8
10	6900-08-08-O	3/4-16	1/2-14	1.24	7/8
11	6900-08-12-O	3/4-16	3/4-14	1.406	1
12	6900-10-06-O	7/8-14	3/8-18	1.358	1
13	6900-10-08-O	7/8-14	1/2-14	1.33	1
14	6900-10-12-O	7/8-14	3/4-14	1.482	1
15	6900-12-06-O	1 1/16-12	3/8-18	1.53	1 1/4
16	6900-12-08-O	1 1/16-12	1/2-14	1.438	1 1/4
17	6900-12-12-O	1 1/16-12	3/4-14	1.578	1 1/4
18	6900-12-16-O	1 1/16-12	1-11 1/2	1.63	1 1/2
19	6900-14-12-O	1 3/16-12	3/4-14	1.683	1 3/8
20	6900-14-16-O	1 3/16-12	1-11 1/2	1.733	1 3/8
21	6900-16-08-O	1 5/16-12	1/2-14	1.61	1 1/2
22	6900-16-12-O	1 5/16-12	3/4-14	1.71	1 1/2
23	6900-16-16-O	1 5/16-12	1-11 1/2	1.71	1 1/2
24	6900-16-20-O	1 5/16-12	1 1/4-11 1/2	1.9	1 7/8
25	6900-20-16-O	1 5/8-12	1-11 1/2	1.828	1 7/8
26	6900-20-20-O	1 5/8-12	1 1/4-11 1/2	1.71	1 7/8
27	6900-24-24-O	1 7/8-12	1 1/2-11 1/2	1.953	2 1/8
28	6900-32-32-O	2 1/2-12	2-11 1/2	2.156	2 3/4

Male O-Ring x Swivel Female Pipe-90 º 6901 Series

wdt_ID	Part #	Thread B1	Thread A2	Length M	Length L	Hex C
1	6901-04-02-NWO	7/16-20	1/8-27	1.11	0.73	11/16
2	6901-04-04-NWO	7/16-20	1/4-18	1.109	0.781	11/16
3	6901-04-06-NWO	7/16-20	3/8-18	1.25	0.93	7/8
4	6901-05-04-NWO	1/2-20	1/4-18	1.13	0.79	11/16
5	6901-06-04-NWO	9/16-18	1/4-18	1.187	0.781	11/16
6	6901-06-06-NWO	9/16-18	3/8-18	1.296	0.937	7/8
7	6901-06-08-NWO	9/16-18	1/2-14	1.484	1	1
8	6901-08-04-NWO	3/4-16	1/4-18	1.486	0.919	1
9	6901-08-06-NWO	3/4-16	3/8-18	1.515	1	1
10	6901-08-08-NWO	3/4-16	1/2-14	1.515	1	1
11	6901-08-12-NWO	3/4-16	3/4-14	1.656	1.25	1 1/4
12	6901-10-06-NWO	7/8-14	3/8-18	1.64	1	1
13	6901-10-08-NWO	7/8-14	1/2-14	1.64	1	1
14	6901-10-12-NWO	7/8-14	3/4-14	1.781	1.25	1 1/4
15	6901-12-06-NWO	1 1/16-12	3/8-18	1.92	1.12	1 1/4
16	6901-12-08-NWO	1 1/16-12	1/2-14	1.921	1.125	1 1/4
17	6901-12-12-NWO	1 1/16-12	3/4-14	1.921	1.25	1 1/4
18	6901-12-16-NWO	1 1/16-12	1-11 1/2	2	1.25	1 1/2
19	6901-14-12-NWO	1 3/16-12	3/4-14	1.921	1.25	1 1/4
20	6901-14-16-NWO	1 3/16-12	1-11 1/2	2.093	1.24	1 1/2
21	6901-16-12-NWO	1 5/16-12	3/4-14	2.093	1	1 1/2
22	6901-16-16-NWO	1 5/16-12	1-11 1/2	2.093	1.39	1 1/2
23	6901-16-20-NWO	1 5/16-12	1 1/4-11 1/2	2.35	1.61	1 7/8
24	6901-20-20-NWO	1 5/8-12	1 1/4-11 1/2	2.484	1.656	1 7/8
25	6901-24-24-NWO	1 7/8-12	1 1/2-11 1/2	2.609	1.734	2 1/8
26	6901-32-32-NWO	2 1/2-12	2-11 1/2	3.25	2.312	2 5/8

Male O-Ring x Swivel Female Pipe-45 º 6902 Series

wdt_ID	Part #	Thread B1	Thread A2	Length L	Length M	Hex C
1	6902-04-04-NWO	7/16-20	1/4-18	1.062	0.656	11/16
2	6902-04-06-NWO	7/16-20	3/8-18	1.062	0.78	7/8
3	6902-06-04-NWO	9/16-18	1/4-18	1.062	0.656	7/8
4	6902-06-06-NWO	9/16-18	3/8-18	1.062	0.703	7/8
5	6902-06-08-NWO	9/16-18	1/2-14	1.062	0.812	1
6	6902-08-04-NWO	3/4-16	1/4-18	1.125	0.81	1
7	6902-08-06-NWO	3/4-16	3/8-18	1.125	0.875	1
8	6902-08-08-NWO	3/4-16	1/2-14	1.125	0.812	1
9	6902-08-12-NWO	3/4-16	3/4-14	1.22	1.08	1 1/4
10	6902-10-06-NWO	7/8-14	3/8-18	1.5	0.932	1
11	6902-10-08-NWO	7/8-14	1/2-14	1.5	0.781	1
12	6902-10-12-NWO	7/8-14	3/4-14	1.359	1.05	1 1/4
13	6902-12-06-NWO	1 1/16-12	3/8-18	1.5	1.02	1 1/4
14	6902-12-08-NWO	1 1/16-12	1/2-14	1.5	0.95	1 1/4
15	6902-12-12-NWO	1 1/16-12	3/4-14	1.5	1.046	1 1/4
16	6902-12-16-NWO	1 1/16-12	1-11 1/2	1.68	1.05	1 1/2
17	6902-16-12-NWO	1 5/16-12	3/4-14	1.625	1.05	1 1/2
18	6902-16-16-NWO	1 5/16-12	1-11 1/2	1.625	1.06	1 1/2
19	6902-20-16-NWO	1 5/8-12	1-11 1/2	1.84	1.45	1 7/8
20	6902-20-20-NWO	1 5/8-12	1 1/4-11 1/2	2.281	1.171	1 7/8
21	6902-24-24-NWO	1 7/8-12	1 1/2-11 1/2	2.609	1.343	2 1/8

At TFE – Transmission & Fluid Equipment we stock Brennan hydraulic adapters. The tables above show the styles and sizes we commonly stock. If you require a style or size not shown, please call our Customer Service Department for pricing and availability.