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  2. Rack unit - Wikipedia

    en.wikipedia.org/wiki/Rack_unit

    Rack with sample component sizes including an A/V half-rack unit. A rack unit (abbreviated U or RU) is a unit of measure defined as 1 + 3 ⁄ 4 inches (44.45 mm). [1] [2] It is most frequently used as a measurement of the overall height of 19-inch and 23-inch rack frames, as well as the height of equipment that mounts in these frames, whereby the height of the frame or equipment is expressed ...

  3. Barrel threads - Wikipedia

    en.wikipedia.org/wiki/Barrel_threads

    Several alternative mounting methods to using action threads exist. Barrel press fit Pressing the barrel into the receiver to achieve a press fit is an alternative to using action threads which has been used on firearms such as Anschütz Fortner, Anschütz Model 54, [61] AKM [62] and Sauer 101. [63] [64] Barrel nut

  4. 19-inch rack - Wikipedia

    en.wikipedia.org/wiki/19-inch_rack

    DIN 41494-8 Components on front panels; mounting conditions, dimensions; DIN IEC 60297-3-100 (see above in IEC section) A rack's mounting fixture consists of two parallel metal strips (also referred to as posts or panel mounts) standing vertically. The posts are each 0.625 inches (15.88 mm) wide, and are separated by a gap of 17.75 inches (450. ...

  5. Picatinny rail - Wikipedia

    en.wikipedia.org/wiki/Picatinny_rail

    It is similar in concept to the earlier commercial Weaver rail mount used to mount telescopic sights, but is taller and has wider slots at regular intervals along the entire length. The MIL-STD-1913 locking slot width is 0.206 in (5.23 mm). The spacing of slot centres is 0.394 in (10.01 mm) and the slot depth is 0.118 in (3.00 mm). [8]

  6. Flange focal distance - Wikipedia

    en.wikipedia.org/wiki/Flange_focal_distance

    Diagram illustrating the flange focal length of an SLR–type and a mirrorless–type camera. For an interchangeable lens camera, the flange focal distance (FFD) (also known as the flange-to-film distance, flange focal depth, flange back distance (FBD), flange focal length (FFL), back focus [1] or register, depending on the usage and source) of a lens mount system is the distance from the ...

  7. Jennifer Lopez has reportedly spent the night at Ben Affleck's house a "couple times" as they have "lingering doubts" about divorce.

  8. Gabourey Sidibe's Husband Calls the Actress and Their 7 ... - AOL

    www.aol.com/lifestyle/gabourey-sidibes-husband...

    Gabourey Sidibe and husband Brandon Frankel are loving their lives as parents of two.. On Saturday, Nov. 16, the proud dad shared a cute picture on Instagram of the American Horror Story alum, 41 ...

  9. Colorado star Travis Hunter 'for sure' heading to NFL in 2025

    www.aol.com/sports/colorado-star-travis-hunter...

    The best White Elephant gifts that everyone will be jostling for