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 6620-00-169-1609
NSN 6685-01-345-0379
NSN 6620-01-414-4578
NSN 5990-01-121-1175
NSN 4140-00-302-7996
NSN 6240-01-110-6235
NSN 6220-01-374-6667
NSN 6150-01-601-2515
NSN 5998-00-173-7882
NSN 7035-00-055-9778
NSN 5855-01-441-1392
NSN 5925-01-239-6743