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 5975-01-463-5727
NSN 7035-01-213-5590
NSN 5990-01-034-8211
NSN 5945-00-904-3729
NSN 6105-01-133-8460
NSN 7035-00-470-4977
NSN 6105-01-409-0640
NSN 6685-01-340-4989
NSN 5915-01-655-1413
NSN 5950-00-227-0240
NSN 5999-01-337-6486
NSN 5835-01-295-9220