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12.15 mm and 12.45 mm
21.73 mm
3.84 mm
howitzer, medium, towed nsn 1025-99-463-7551
steel comp 1055
zinc
astm B633 TYPE1, SC4 assn std single treatment response
split HELICAL-Right hand
Split helical-right hand
Steel comp 1055
3.84 millimeters minimum
21.73 millimeters maximum
12.15 millimeters minimum and 12.45 millimeters maximum
Schedule B number: 7318210000
nmfc 194160
Spring washers and other lock washers, iron or steel
FSC 5310 ⁓ Nuts and washers
Note-nuts and washers, including specially designed, are to be classified in this fsc. a. nuts are a small metal block made in a variety of shapes such as square and hexagonal which is drilled and internally threaded. b. washers are a perforated piece of metal, leather, or other materials of various shapes or forms. they are used primarily as a seat for a bolt, nut, screw, rivet or nail to distribute pressure and prevent endwise motion over an area and/or to prevent movement between two parts by means of restraining features created by the shape of its edges.
Excluding bearing thrust washers (fsc 3120); shims (fsc 5365); ring spacers (fsc 5365); plate spacers (fsc 5365); lock rings (fsc 5365).
Used on howitzer, medium, towed nsn 1025-99-463-7551. split helical-right hand zinc surface treated 3.84mm material thickness 21.73mm outside diameter 12.15mm hole diameter
Nothing similar to this part number was found in our inventory
A washer which is usually round with a centrally located hole. its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. it may be made of one or two pieces