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0.448in. and 0.458in. ⁓15/32"
0.845in. and 0.855in.
0.552in. and 0.562in.
0.160in. and 0.180in.
180000 pounds per square inch
40.0 rockwell c and 46.0 rockwell c
88.0 degrees and 92.0 degrees
32.0 microinches top
navy special project
0.515 in. min, 0.535 in. max spherical radius one side of bearing surface
steel comp 4130 or steel comp 8740 or steel
MIL-S-6758 mil spec 1st material response or MIL-S-18729 mil spec 1st material response or MIL-S-6049 mil spec 2nd material response or ams 6358 assn std 2nd material response or astm A193 B7 assn std 3rd material response
cadmium and chromate
QQ-P-416, ty 2, cl 3 fed spec single treatment response
15 recessed
15 recessed
Steel comp 4130 or steel comp 8740 or steel
0.160 inches minimum and 0.180 inches maximum
0.845 inches minimum and 0.855 inches maximum
0.448 inches minimum and 0.458 inches maximum
Schedule B number: 7318220000
nmfc 194160
Washers other than 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).
15 recessed cadmium surface treated 0.515 in. min, 0.535 in. max spherical radius one side of bearing surface navy special project 0.160" material thickness 0.845" outside diameter 0.448" hole diameter
Nothing similar to this part number was found in our inventory
A washer of any peripheral shape having a centrally located hole. both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. the thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. the maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. excludes washer, concave, retainer, packing, and thrust type washers. see also spacer, sleeve; and spacer, stepped.