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 5920-01-511-6441
NSN 5925-01-308-9537
NSN 6130-01-357-9165
NSN 5835-00-816-0394
NSN 6105-01-344-7302
NSN 6645-00-099-6913
NSN 6645-01-239-8133
NSN 6135-00-962-4111
NSN 5910-00-204-7347
NSN 5996-01-209-5886
NSN 6620-00-182-7638
NSN 5895-01-655-6025