Weight g 6.4 23.6 34.4 38.8 56.9 46.2 93.6 87.4 Male thread type Female thread type Body size H Width across flats T Connection port size Weight g Effective area mm2 L1 Min. bore size A1 M5 1/8 1/4 1/2 2.5 4.7 6.0 9.0 6.0 9.0 11.0 13.0 11.0 13.0 15.0 8 10 14 17 19 22 24 27 M5 x 0.8 R 1/8 R 1/8 R 1/4 R 3/8 R 1/8 R 1/4 R 3/8 R 1/2 R 3/8 R 1/2 R 3/4 24.7 24.4 36.6 37.0 37.6 49.5 50.5 48.9 48.8 59.1 59.3 60.2 oD 10.0 20.2 28.0 31.6 L2 When connected 26.2 25.9 39.1 39.5 40.1 53.2 54.2 52.6 52.5 64.4 64.6 65.5 21.7 33.5 31.5 32.2 46.4 45.0 43.5 41.7 53.7 52.2 50.7 A2 When connected 23.7 22.8 36.0 34.0 34.5 50.1 48.7 47.2 45.4 59.0 57.5 56.0 6.1 9.1 20.1 19.2 29.0 47.5 44.1 50.9 61.2 87.9 90.1 113.3 3.8 5.8 20.4 21.1 22.9 38.9 40.4 42.7 71.7 82.3 83.8 Model KK2S-M5M -01MS KK3S-01MS -02MS -03MS KK4S-01MS -02MS -03MS -04MS KK6S-03MS -04MS -06MS Body size H Width across flats T Connection port size Effective area mm2 L1 Min. bore size M5 1/8 1/4 1/2 8 14 17 19 24 10.0 20.2 28.0 31.6 M5 x 0.8 Rc 1/8 Rc 1/4 Rc 3/8 Rc 1/4 Rc 3/8 Rc 1/2 25.3 36.0 40.1 41.9 50.4 51.1 58.6 61.0 oD L2 When connected 26.8 38.5 42.6 44.4 54.1 54.8 63.9 66.3 4.2 8.2 10.9 14.4 18.0 5.4 20.6 21.1 39.6 42.7 83.1 83.8 Model KK2S-M5F KK3S-01F -02F -03F KK4S-02F -03F KK6S-03F -04F Body size Weight g Effective area mm2 L1 H1 Width across flats Min. bore size M 1/8 1/4 1/2 5/8 6/9 6.5/10 5/8 6/9 6.5/10 8/12 8.5/12.5 8/12 8.5/12.5 11/16 14 17 19 24 H2 Width across flats 14 17 14 17 19 24 42.6 44.4 54.1 56.8 55.4 66.0 64.4 45.1 46.9 57.8 60.5 59.1 71.3 69.7 oD 20.2 28.0 31.6 13.7 16.5 13.7 16.5 17.4 20.1 L2 When connected 4.5 5.4 5.9 4.5 5.4 5.9 7.4 7.8 7.4 7.8 10.2 12.2 18.3 19.2 12.2 20.4 24.1 35.1 36.6 41.2 68.4 32.1 48.7 46.4 55.8 69.3 66.8 68.5 71.1 107.5 110.2 119.8 Model KK3S-50N -60N -65N KK4S-50N -60N -65N -80N -85N KK6S-80N -85N -110N Nut fitting type (for fiber reinforced urethane hose) Dimensions/Socket (S) . . . Reference dimension for R threads after installation. (mm) (mm) (mm) Applicable hose I.D./O.D. oD L1 L2 T H A1 A2 oD L1 L2 H KK2 T KK3/4/6 KK2 KK3/4/6 KK2 KK3/4/6 KK2 KK3/4/6 A1 A2 L1 L2 oD H T L1 L2 oD H T Applicable hose oD L2 M L1 H1 H2 Series KK 176