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 6685-00-398-0341
NSN 6650-00-500-6455
NSN 6620-01-196-2148
NSN 6685-01-542-3030
NSN 5905-00-806-4852
NSN 6145-00-242-0569
NSN 5910-01-507-0099
NSN 6320-00-557-3079
NSN 6110-00-193-0030
NSN 6320-00-456-2092
NSN 5925-01-069-0276
NSN 5998-01-119-8869