Air Hose, Hose Tube Material Nitrile, Hose Cover Material Nitrile/ CROSS-SECTIONAL SHAPE STYLE: A1 ROUND INSIDE DIAMETER: 0.500 INCHES NOMINAL OUTSIDE DIAMETER: 20.6 MILLIMETERS NOMINAL EXTERIOR COLOR: RED OUTSIDE LENGTH: 300.0 INCHES NOMINAL PART NAME ASSIGNED BY CONTROLLING AGENCY: AIR HOSE SPECIAL FEATURES: HOSE FITTING A AND B TYPE MNPT, HOSE FITTING A AND B SIZE 0.500, BOTH FITTING BRASS, MATERIAL: RUBBER MEDIA FOR WHICH DESIGNED: AIR