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 6610-01-119-7873
NSN 5855-00-491-7079
NSN 6110-01-486-5717
NSN 4140-01-534-9987
NSN 5835-00-933-9609
NSN 6220-01-604-9238
NSN 6105-01-225-4974
NSN 5925-01-561-9714
NSN 5965-00-845-6325
NSN 5985-00-289-9862
NSN 6320-01-578-6006
NSN 5998-01-161-0986