Serving our customers with quality and safety first.
3.7500in. and 3.7512in. ⁓3-49/64"
3.9398in. and 3.9410in.
4.250in.
0.438in.
0.060in. and 0.065in.
100.0 microinches all surfaces
copper
QQ-C-390 fed spec single material response
shouldered
1EA
Shouldered
Copper
0.060 inches minimum and 0.065 inches maximum
4.250 inches
3.7500 inches minimum and 3.7512 inches maximum
Schedule B number: 7415210000
nmfc 114870
Copper washers including spring washers not threaded
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).
shouldered 0.060" material thickness 4.250" outside diameter 3.7500" hole diameter
Nothing similar to this part number was found in our inventory
A washer, round in shape, and having a centrally located hole. one bearing surface is flat and unbroken, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. the thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. for items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing sleeve; or spacer, sleeve. excludes insulator, washer and thrust type washers.