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 5835-01-192-4165
NSN 6240-00-104-4662
NSN 7035-01-485-5114
NSN 5895-00-859-1244
NSN 6610-00-982-6768
NSN 6130-01-565-4377
NSN 6645-01-597-2222
NSN 2925-01-380-0869
NSN 5985-01-466-6341
NSN 5960-01-303-0301
NSN 6685-01-465-7183
NSN 5915-01-526-8489