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  2. Steel grades - Wikipedia

    en.wikipedia.org/wiki/Steel_grades

    In addition to the descriptive steel grade naming system indicated above, within EN 10027-2 is defined a system for creating unique steel grade numbers. While less descriptive and intuitive than the grand names they are easier to tabulate and use in data processing applications.

  3. M67 recoilless rifle - Wikipedia

    en.wikipedia.org/wiki/M67_recoilless_rifle

    The TP M371 is a practice round for the M371A1 HEAT round. [12] It has the high explosive filler replaced with inert ballast to keep it at the same weight and flight properties. The nose cap contains a smoke pellet to mark the point of impact. Cartridge weight: 9.25 lb (4.2 kg) Cartridge length: 28.10 in (714 mm)

  4. List of the United States Army munitions by supply catalog ...

    en.wikipedia.org/wiki/List_of_the_United_States...

    R1JFS = 4 cartridges × 57 mm HEAT M307A1 Shell with Point-Initiating Fuze M90. Wooden crate. Volume: 1 cu ft. R1JSA = 4 cartridges × 57 mm TP (Training / Practice) Shell. Wooden crate. Gross Weight: 38 lbs. Volume: 1 cu ft. R1JUA = 4 cartridges × 57 mm Smoke M308A1 Shell (Steel Case) with Point-Detonating Fuze M503A1. Wooden crate.

  5. Bar stock - Wikipedia

    en.wikipedia.org/wiki/Bar_stock

    There are four types of materials available: O-1 tool steel, A-2 tool steel, A-6 tool steel, and 1018 steel (low-carbon or low-carb steel). Lengths are either 18 or 36 in (457 or 914 mm) long, various widths up to 16 in (406 mm) are available, and thicknesses range from 1 ⁄ 64 to 2.875 in (0.40 to 73.03 mm).

  6. Eccentric reducer - Wikipedia

    en.wikipedia.org/wiki/Eccentric_reducer

    An eccentric reducer is a fitting used in piping systems between two pipes of different diameters. The same fitting can be used in reverse as an eccentric increaser or expander.

  7. Flechette - Wikipedia

    en.wikipedia.org/wiki/Flechette

    During the Vietnam War 105 mm howitzer batteries and tanks (90 mm guns) used flechette rounds to defend themselves against massed infantry attacks. The ubiquitous 105 mm M40 recoilless rifle was primarily used as an anti-tank weapon. However, it could also be used in an anti-personnel role with the use of flechette rounds.

  8. List of screw and bolt types - Wikipedia

    en.wikipedia.org/wiki/List_of_screw_and_bolt_types

    Square head cap screws up to and including 3 ⁄ 4 inch (19.05 mm) have a head 1 ⁄ 8 inch (3.175 mm) larger than the shank; screws larger than 3 ⁄ 4 inch (19.05 mm) have a head 1 ⁄ 4 inch (6.35 mm) larger than the shank. [9] In 1919, Dyke defined them as screws that are threaded all the way to the head. [10] socket screw

  9. French ironclad Redoutable - Wikipedia

    en.wikipedia.org/wiki/French_ironclad_Redoutable

    She is completely belted with 14 in [360 mm] armour, with a 15 in [380 mm] backing, and has the central battery armoured with plates of 9½ in [240 mm] in thickness. The engines are two in number, horizontal, and of the compound two cylinder type, developing a horsepower of 6,071 [4.527 MW], which on the trial trip gave a speed of 14.66 knots ...