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 5985-00-189-0599
NSN 5925-01-054-3783
NSN 2925-01-131-8761
NSN 6105-01-377-6284
NSN 5985-01-550-7398
NSN 6320-01-600-0787
NSN 5945-00-503-5840
NSN 6240-00-811-2777
NSN 5999-01-562-1593
NSN 6110-01-555-8410
NSN 6150-01-108-3135
NSN 5835-00-461-3342