Hart Industries - Female Threaded Unions

Products

HART O-Ring Unions - Female Threaded Unions

3000 lb. Female Threaded FNPT Fig. 3131
6000 lb. Female Threaded FNPT Fig. 6161

The most popular union in the industry for general purpose joining of piping systems
Flat faced design
Size range: 1/8" to 3"
Full flow-waterway bore
Zero leakage
Makes and breaks repeatedly
All HART Industrial Unions are precision machined
Viton O-Ring standard, Buna N, Teflon, EPDM, Neoprene also available (call for compatibility)

Standard Assemblies
A105 Carbon Steel
304 Stainless Steel
316 Stainless Steel
Alloys - see materials list
under how to order

Dimensions

3000 psi W.O.G., Cold, Non Shock

FIGURE NO	A FNPT	B	C HEX	D	E TAIL-PIECE	F THREAD-PIECE	WGT (LBS)
3131-0	1/8" - 27	1.660	1-3/8	3/4	0.785	0.875	1/2
3131-1	1/4" - 18	1.660	1-3/8	3/4	0.785	0.875	1/2
3131-2	3/8" - 18	1.800	1-1/2	7/8	0.863	0.937	1/2
3131-3	1/2" - 14	2.035	1-7/8	1-1/8	0.935	1.100	1
3131-4	3/4" - 14	2.148	2-1/8	1-3/8	1.023	1.125	1-1/4
3131-5	1"- 11 1/2	2.570	2-1/2	1-3/4	1.258	1.312	2
3131-6	1 1/4" - 11 1/2	2.822	3	2-1/8	1.385	1.437	3
3131-7	1 1/2" - 11 1/2	3.072	3-3/8	2-3/8	1.510	1.562	4
3131-8	2" - 11 1/2	3.259	3-7/8	2-7/8	1.572	1.687	5
3131-9	2 1/2" - 8	3.635	4-7/8	3-1/2	1.760	1.875	8-1/2
3131-10	3" - 8	4.135	5-1/2	4	2.010	2.125	9

Dimensions

6000 psi W.O.G., Cold, Non Shock

FIGURE NO	A FNPT	B	C HEX	D	E TAIL-PIECE	F THREAD-PIECE	WGT (LBS)
6161-0	1/8" - 27	1.660	1-3/8	3/4	0.785	0.875	1/2
6161-1	1/4" - 18	1.800	1-1/2	7/8	0.863	0.937	1/2
6161-2	3/8" - 18	2.035	1-7/8	1-1/8	0.935	1.100	1
6161-3	1/2" - 14	2.148	2-1/8	1-3/8	1.023	1.125	1-1/4
6161-4	3/4" - 14	2.570	2-1/2	1-3/4	1.258	1.312	2
6161-5	1" - 11 1/2	2.822	3	2-1/8	1.385	1.437	3
6161-6	1 1/4" - 11 1/2	3.072	3-3/8	2-3/8	1.510	1.562	4
6161-7	1 1/2" - 11 1/2	3.259	3-7/8	2-7/8	1.572	1.687	5
6161-8	2" - 11 1/2	3.635	4-7/8	3-1/2	1.760	1.875	8-1/2
6161-9	2 1/2" - 8	4.135	5-1/2	4	2.010	2.125	9
6161-10	3" - 8	4.875	6-7/8	5	2.375	2.500	15

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