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 5998-00-281-5973
NSN 4140-01-219-4754
NSN 6110-00-035-8794
NSN 6610-01-476-5685
NSN 6110-00-938-5842
NSN 7035-01-222-2534
NSN 6145-01-200-4625
NSN 5925-01-437-5190
NSN 6650-01-421-3491
NSN 5985-00-905-6609
NSN 6220-00-276-8681
NSN 6105-01-415-0598