Stee, corrosion resisting.Aisi comp 431 or aisi comp 630, magnetic; annealed; passivated; 0.985 in. Min 1.015 in. Max dia; 0.438 in. Max h; blind threaded mtg hole 0.190-32unf-2b by 0.250 in. Min dp w/countersink 45.0 degrees by 0.250 in. Dia; both faces parallel within 2.0 degrees across diameter; one face has four to six concentric annular vee shaped grooves 0.031 in. W by 0.031 in. Dp; groove shape not critical; used to transmit vibrations between test equipment and items being tested
A circular item with two parallel bearing surfaces without hole(s) or groove(s). It has an outside diameter greater than its length, and may be fabric reinforced. Do not use if a more specific item name applies. For items primarily designed to rupture at a predetermined pressure, see disk, rupturable. For items made of felt, see felt, mechanical, preformed. For metallic or plastic items with a laminated cross section, see shim. Excludes diaphragm, valve, flat; diaphragm, valve, special shaped; disk, valve, nonmetallic; filtering disk fluid; and insulator, disk.
NSN 5905-01-232-2181
NSN 5920-00-355-4736
NSN 6105-00-614-8003
NSN 5996-01-438-7529
NSN 4140-01-353-9043
NSN 6145-01-626-8304
NSN 5985-01-625-6160
NSN 5975-01-383-2856
NSN 6610-01-191-9673
NSN 5905-01-502-6530
NSN 5910-00-280-1463
NSN 5985-01-199-8382