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 7035-01-010-8309
NSN 6620-01-588-9278
NSN 6610-00-277-7206
NSN 5985-00-203-1200
NSN 5960-01-420-4744
NSN 6685-01-465-7661
NSN 4140-01-170-3359
NSN 7035-00-470-4977
NSN 6145-01-300-3728
NSN 6135-00-377-9165
NSN 6685-00-295-0824
NSN 5935-00-392-4072