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 6130-01-057-2610
NSN 5999-00-266-3805
NSN 5975-01-186-4268
NSN 5910-01-437-6881
NSN 5930-00-657-5079
NSN 6145-01-048-8429
NSN 5996-00-195-5228
NSN 6685-01-018-6768
NSN 6130-01-132-8052
NSN 5895-00-100-1216
NSN 5945-01-391-4999
NSN 6150-01-501-7906