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Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures. [1] " Nominal" refers to pipe in non-specific terms and identifies the diameter of the hole with a non-dimensional number (for example – 2-inch nominal steel pipe" consists of many varieties of steel pipe with the only criterion being a 2.375-inch (60.3 mm) outside ...
The Charrière is measured by the ''outer'' diameter, and is defined as 1 Fr = 1/3 mm, and thus 1 mm = 3 Fr; therefore the diameter of a round catheter in millimetres can be determined by dividing the French size by 3. [2] The French units roughly correspond to the outer circumference of the catheter (see table below).
8.467 mm Popular scale for period ship plans — 1 inch = 3 feet. 1:35: 8.709 mm: Military models: The most popular scale for military vehicles and figures. Used heavily in models of armoured vehicles. It was originally conceived by Tamiya for convenience of fitting motorised parts and batteries. Corresponds well with 54mm figures. 1:34: 8.965 mm
For bits thicker than a minimum size such as 1 ⁄ 8-inch (3.175 mm), they are available in fixed lengths such as 6, 8, 12 or 18 inches (152, 203, 305 or 457 mm) rather than the progressive lengths of jobber drills. 11/32 inch drills: long-series Morse, plain Morse, jobber
1 / 36 yd or 1 / 12 ft. Metric (SI) units. 25.4 mm. A fire hydrant marked as 3-inch. The inch (symbol: in or ″) is a unit of length in the British Imperial and the United States customary systems of measurement. It is equal to 1 36 yard or 1 12 of a foot. Derived from the Roman uncia ("twelfth"), the word inch is ...
Schematic of a machine tap. Below is a comprehensive drill and tap size chart for all drills and taps, imperial and metric, up to 36.5 millimetres (1.44 in) in diameter.. In manufactured parts, holes with female screw threads are often needed; they accept male screws to facilitate the building and fastening of a finished assembly.
As well as 1 ⁄ 4 in (6.4 mm) tape, studio and multitrack machines use tape widths of 1 ⁄ 2, 1, and 2 inches (12.7, 25.4, and 50.8 mm), and at least one 3 inches (76.2 mm) [citation needed] machine was available for a time. There is also a 35 mm width, but this variety is more similar to the motion picture stock of the same width. It is ...
The step up to 300 mm required major changes, with fully automated factories using 300 mm wafers versus barely automated factories for the 200 mm wafers, partly because a FOUP for 300 mm wafers weighs about 7.5 kilograms [46] when loaded with 25 300 mm wafers where a SMIF weighs about 4.8 kilograms [47] [48] [18] when loaded with 25 200 mm ...