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 6110-01-061-5777
NSN 5975-01-356-3070
NSN 5999-00-067-7291
NSN 6685-00-752-1868
NSN 5905-01-014-6566
NSN 7035-00-981-7216
NSN 5996-00-369-5299
NSN 5935-01-547-9617
NSN 5945-00-721-3457
NSN 6620-00-067-4946
NSN 6650-00-353-4097
NSN 6650-01-570-0430