Swagelok Male NPT Hex Nipple, 1/4 inch, 1.4 in. Length, 316 Stainless Steel. Swagelok PN: SS-4-HN These Swagelok® Male NPT (MNPT) hex nipples are used to make vacuum connections between two Female National Pipe Thread (FNPT) fittings. For a good vacuum seal we recommend to always use a pipe thread sealant when assembling tapered threads. Pipe thread sealants and pipe tape are sold on this web site. Swagelok-TM Swagelok Company

1/8 inch ID NPT Male Coupler/Nipple, 3 in. length, 304 Stainless Steel, Vacuum Fitting These Male NPT (MNPT) nipples are used to make vacuum connections between two Female National Pipe Thread (FNPT) fittings. For a good vacuum seal we recommend to always use a pipe thread sealant when assembling tapered threads. Pipe thread sealants and pipe tape are sold on this web site (Please see below in our Related Articles section). Common Dimensions: 1/8 inch ID NPT Male Coupler Material: 304 Stainless Steel

1/4 inch NPT Male Coupler/Nipple, 3 in. length, 304 Stainless Steel, Vacuum Fitting These Male NPT (MNPT) nipples are used to make vacuum connections between two Female National Pipe Thread (FNPT) fittings. For a good vacuum seal we recommend to always use a pipe thread sealant when assembling tapered threads. Pipe thread sealants and pipe tape are sold on this web site (Please see below in our Related Articles section). Common Dimensions: 1/4 inch ID NPT Male Coupler Material: 304 Stainless Steel

3/8 inch ID NPT Male Coupler/Nipple, 3 in. length, 304 Stainless Steel, Vacuum Fitting These Male NPT (MNPT) nipples are used to make vacuum connections between two Female National Pipe Thread (FNPT) fittings. For a good vacuum seal we recommend to always use a pipe thread sealant when assembling tapered threads. Pipe thread sealants and pipe tape are sold on this web site (Please see below in our Related Articles section). Common Dimensions: 3/8 inch ID NPT Male Coupler Material: 304 Stainless Steel

1/2 inch ID NPT Male Coupler/Nipple, 3 in. length, 304 Stainless Steel, Vacuum Fitting These Male NPT (MNPT) nipples are used to make vacuum connections between two Female National Pipe Thread (FNPT) fittings. For a good vacuum seal we recommend to always use a pipe thread sealant when assembling tapered threads. Pipe thread sealants and pipe tape are sold on this web site (Please see below in our Related Articles section). Common Dimensions: 1/2 inch ID NPT Male Coupler Material: 304 Stainless Steel

3/4 inch ID NPT Male Coupler/Nipple, 3 in. length, 304 Stainless Steel, Vacuum Fitting These Male NPT (MNPT) nipples are used to make vacuum connections between two Female National Pipe Thread (FNPT) fittings. For a good vacuum seal we recommend to always use a pipe thread sealant when assembling tapered threads. Pipe thread sealants and pipe tape are sold on this web site (Please see below in our Related Articles section). Common Dimensions: 1/2 inch ID NPT Male Coupler Material: 304 Stainless Steel

1 inch NPT Male Coupler/Nipple, 3 in. length, 304 Stainless Steel, Vacuum Fitting These Male NPT (MNPT) nipples are used to make vacuum connections between two Female National Pipe Thread (FNPT) fittings. For a good vacuum seal we recommend to always use a pipe thread sealant when assembling tapered threads. Pipe thread sealants and pipe tape are sold on this web site (Please see below in our Related Articles section). Common Dimensions: 1 inch NPT Male Coupler Material: 304 Stainless Steel

1-1/4 inch ID NPT Male Coupler/Nipple, 3.5 in. length, 304 Stainless Steel, Vacuum Fitting These Male NPT (MNPT) nipples are used to make vacuum connections between two Female National Pipe Thread (FNPT) fittings. For a good vacuum seal we recommend to always use a pipe thread sealant when assembling tapered threads. Pipe thread sealants and pipe tape are sold on this web site (Please see below in our Related Articles section). Common Dimensions: 1-1/4 inch ID, 3.5 in length, NPT Male Coupler Material: 304 Stainless Steel

1-1/2 inch ID NPT Male Coupler/Nipple, 3 in. length, 304 Stainless Steel, Vacuum Fitting These Male NPT (MNPT) nipples are used to make vacuum connections between two Female National Pipe Thread (FNPT) fittings. For a good vacuum seal we recommend to always use a pipe thread sealant when assembling tapered threads. Pipe thread sealants and pipe tape are sold on this web site (Please see below in our Related Articles section). Common Dimensions: 1-1/2 inch ID NPT Male Coupler Material: 304 Stainless Steel

2 inches ID NPT Male Coupler/Nipple, 3 in. length, 304 Stainless Steel, Vacuum Fitting These Male NPT (MNPT) nipples are used to make vacuum connections between two Female National Pipe Thread (FNPT) fittings. For a good vacuum seal we recommend to always use a pipe thread sealant when assembling tapered threads. Pipe thread sealants and pipe tape are sold on this web site (Please see below in our Related Articles section). Common Dimensions: 2 inch ID NPT Male Coupler Material: 304 Stainless Steel