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 7035-01-182-1086
NSN 6150-01-367-6680
NSN 5965-01-376-7301
NSN 5965-01-592-3051
NSN 6105-00-480-9480
NSN 5985-01-601-6032
NSN 5996-01-432-1145
NSN 4140-01-449-4193
NSN 5975-01-477-1186
NSN 5990-01-133-0351
NSN 5910-01-661-1457
NSN 7035-01-027-1718