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 5999-00-276-9299
NSN 6685-01-441-9378
NSN 5965-01-484-2743
NSN 6105-01-099-8111
NSN 6150-01-521-3510
NSN 6620-00-530-1370
NSN 7035-00-991-6877
NSN 5960-00-055-3358
NSN 6620-00-437-3220
NSN 6220-01-516-1292
NSN 5999-00-112-1501
NSN 6240-00-244-0483