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 6135-01-392-4160
NSN 6240-00-827-0889
NSN 7035-00-064-7008
NSN 6240-00-681-2795
NSN 5895-00-072-7709
NSN 6650-01-215-9209
NSN 5965-00-764-1841
NSN 5910-01-032-4190
NSN 7035-00-946-2642
NSN 6220-00-249-9834
NSN 5930-01-334-8177
NSN 6105-01-240-5891