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0.344in. and 0.355in. ⁓23/64"
0.313in.
0.425in. and 0.445in.
0.0434in.
0.057in. and 0.069in.
aircraft B-52
36.0 rockwell c and 40.0 rockwell c
45.0 degrees
steel comp 4130 or steel comp 8630 or steel comp 8735 or steel comp 4135
MIL-S-18729 mil spec 1st material response or MILS-18728 mil spec 2nd material response or ams 6357 assn std 3rd material response or ams 6352 assn std 4th material response
copper alloy and nickel
ams 2416 assn std single treatment response
15 recessed
15 recessed
Steel comp 4130 or steel comp 8630 or steel comp 8735 or steel comp 4135
0.057 inches minimum and 0.069 inches maximum
0.313 inches
0.344 inches minimum and 0.355 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).
Used on aircraft b-52. 15 recessed copper alloy surface treated 0.057" material thickness 0.313" outside diameter 0.344" 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.