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 6110-00-004-8883
NSN 5910-01-272-1352
NSN 6110-01-277-9026
NSN 5985-00-086-9364
NSN 5960-01-413-3877
NSN 7035-01-287-9817
NSN 6150-00-150-8838
NSN 5999-01-023-3518
NSN 6105-01-221-7685
NSN 5835-01-067-0075
NSN 5975-01-092-8655
NSN 5985-00-245-0240