Vacuum Fittings
Below are the sizes for the diameters of the various NW, QF, KF and ISO vacuum fittings. We have included a file you may download that shows, to scale, the various sizes. This chart also lists the physically measured diameters of the flange so you can use it to review what you have there used a ruler or calipers. There is typically enough differentiation in the size of the diameters of the flange compared to other sizes of flanges to easily determine one NW size from another by simply by measuring with a ruler, scale or calipers. Exceptions are some of the oddballs. The NW10 size, which is not often used, is many times satisfied with standard NW16 parts.-
NW25 Clamp 304 Stainless Steel Wingnut
$ 25.30$ 26.63 -
NW25 Clamp Aluminum Wing Nut
$ 7.61$ 8.01 -
NW25 Centering Ring 304 Stainless Steel With Viton Oring
$ 6.97$ 7.34 -
NW40 Clamp 304 Stainless Steel Wingnut
$ 28.82$ 30.34 -
NW25 X .500" Hose Fitting, 304 Stainless Steel (1/2" OD)
$ 17.76$ 18.69 -
NW16 Centering Ring 304 Stainless Steel Viton Oring
$ 6.66$ 7.01 -
NW16 Clamp 304 Stainless Steel Wingnut
$ 20.31$ 21.38 -
NW40 Centering Ring 304 Stainless Steel With Silicone Oring
$ 10.50$ 11.01 -
NW16 X .250" Hose Fitting Aluminum (1/4" OD)
$ 12.05$ 12.68 -
NW40 Centering Ring 304 Stainless Steel With Screen With Viton
$ 39.31$ 41.38 -
NW25 Port Cover, Aluminum
$ 6.33$ 6.67 -
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NW25 X 1.00" Hose Fitting, 304 Stainless Steel (1" OD)
$ 16.48$ 17.35 -
NW25 X .750" Hose Fitting, Barb Aluminum (3/4" OD)
$ 14.72$ 15.49 -
NW25 X .500" Hose Barb, Fitting Aluminum
$ 14.94$ 15.73 -
NW25 X .375" Hose Barb, Fitting 304 Stainless Steel (3/8" OD)
$ 21.55$ 22.69 -
NW25 X .250" Hose Fitting, Aluminum (1/4" OD)
$ 12.68$ 13.35 -
NW25 X .250" Hose Fitting, 304 Stainless Steel (1/4" OD)
$ 21.60$ 22.69 -
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NW25 Centering Ring 304 Stainless Steel With EPDM Oring
$ 6.66$ 7.01 -
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NW16 X .750" Hose Fitting 304 Stainless Steel (3/4" OD)
$ 13.95$ 14.68 -
NW16 X .375" Hose Fitting 304 Stainless Steel (3/8" OD)
$ 17.76$ 18.69 -
NW50 TO NW40 Conical Adapter 304 Stainless Steel
$ 55.79$ 58.73 -
NW50 TO NW25 Conical Adapter 304 Stainless Steel
$ 46.92$ 49.39 -
NW40 TO NW25 Conical Adapter 304 Stainless Steel
$ 50.80$ 53.46 -
NW40 TO NW50 Conical Adapter Aluminum
$ 31.60$ 33.26 -
NW40 TO NW25 Conical Adapter Aluminum
$ 31.60$ 33.26 -
NW40 Clamp STANDARD Aluminum Wing Nut
$ 9.51$ 10.01 -
NW40 X 20" Bellows Hose Fitting .009 Wall Thickness 304 Stainless Steel
$ 115.21$ 121.18 -
NW40 Centering Ring Aluminum With Buna-N Oring
$ 5.07$ 5.34