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 5998-01-019-5849
NSN 6685-00-671-9329
NSN 6145-00-291-5388
NSN 6610-01-287-9814
NSN 6650-00-418-2129
NSN 6110-00-113-1415
NSN 7035-01-587-6239
NSN 7035-01-457-0371
NSN 5895-01-384-2794
NSN 6130-00-028-6922
NSN 5895-00-212-7451
NSN 6150-01-050-9811