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 7035-01-356-4025
NSN 5960-00-594-0824
NSN 6650-00-916-7847
NSN 6150-01-106-3646
NSN 5960-00-900-3508
NSN 5905-01-463-2216
NSN 5920-01-537-0684
NSN 5855-01-323-5394
NSN 5910-00-146-2427
NSN 5996-01-559-2621
NSN 6650-01-277-8273
NSN 7035-01-053-0535