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 6145-01-519-8210
NSN 5905-01-195-8171
NSN 5930-00-374-5962
NSN 5910-00-993-2754
NSN 6110-00-470-9741
NSN 5960-00-078-9500
NSN 6685-00-222-8216
NSN 5945-01-584-9793
NSN 6610-00-382-0266
NSN 6240-01-147-7494
NSN 6610-01-463-5368
NSN 6610-00-133-4508