Counterbore dia. 1.805-1.810 in., counterbore depth 0.120 in.
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: Articles of aluminum nesoi
NSN 5990-01-460-6390
NSN 7035-01-492-3376
NSN 6220-01-174-0221
NSN 6685-00-312-8319
NSN 5990-00-898-2675
NSN 6105-00-135-9821
NSN 6105-01-121-0520
NSN 5975-00-565-1071
NSN 6105-01-487-7095
NSN 5985-00-296-9999
NSN 6320-01-160-8578
NSN 5985-01-546-2559