A circular-shaped item designed to maintain predetermined distance between assembled parts and/or for distributing pressure or preventing endwise movement between member parts. It has a solid cross-section and two flat parallel bearing surfaces. The distance between the bearing surfaces perpendicular to the axis of the centrally located hole shall not exceed 25 percent of the outside diameter. The diameter of the centrally located hole must exceed 75 percent of the outside diameter. Excludes laminated items. For items manufactured from impregnated graphite or lubricated nonmetallic materials, excluding felt or plastics, see gasket. For items manufactured from lubricated plastics, see bearing, washer, thrust. For items manufactured from lubricated felt, see felt, mechanical, preformed. Excludes disk, valve; insulator washer; and shim. See also spacer, plate and spacer, sleeve.
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 5999-01-201-5605
NSN 6610-01-384-1587
NSN 5895-01-390-9380
NSN 5935-00-621-7891
NSN 5950-00-758-5642
NSN 6645-01-349-6632
NSN 6645-00-285-8781
NSN 5998-01-326-8784
NSN 5910-00-221-5060
NSN 5925-01-432-0547
NSN 5975-01-433-8052
NSN 5950-01-396-3072