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 5960-01-260-7430
NSN 5925-00-666-4753
NSN 6110-01-380-1887
NSN 6150-00-926-2964
NSN 6620-01-492-4271
NSN 5910-01-302-5941
NSN 5960-01-388-4951
NSN 7035-01-119-6271
NSN 7035-00-486-0367
NSN 6610-01-470-6480
NSN 5935-01-106-2931
NSN 5990-00-140-4559