Serving our customers with quality and safety first.
1.250in. and 1.310in. ⁓1-5/16"
3.970in. and 4.030in.
0.520in. and 0.580in.
1.375in.
90.0 degrees
90.0 degrees
1.375in.
as fabricated
aluminum alloy
oxide film
MIL-STD-171 mil std single treatment response
recessed both sides
1EA
Recessed both sides
Aluminum alloy
0.520 inches minimum and 0.580 inches maximum
3.970 inches minimum and 4.030 inches maximum
1.250 inches minimum and 1.310 inches maximum
Schedule B number: 7616108000
nmfc 194160
Cotters, cotter-pins, washers and similar articles, of aluminum
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).
recessed both sides oxide film surface treated 0.520" material thickness 3.970" outside diameter 1.250" 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.