A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5855-00-160-2286
NSN 5930-00-801-7233
NSN 5895-00-518-1593
NSN 6150-01-504-2356
NSN 6320-01-170-4068
NSN 5895-01-106-3809
NSN 2925-01-209-3584
NSN 5915-01-429-0874
NSN 5990-01-595-9441
NSN 5998-01-605-0816
NSN 5996-01-003-1955
NSN 6130-01-113-4472