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 6240-00-987-0977
NSN 5905-01-314-7734
NSN 5855-01-580-2322
NSN 6105-00-380-0309
NSN 6610-01-153-0700
NSN 6220-01-491-5863
NSN 5935-00-411-1995
NSN 5960-01-488-5817
NSN 6220-01-361-9152
NSN 6610-01-579-1774
NSN 6645-01-564-7129
NSN 6150-00-242-6241