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 5935-01-073-6070
NSN 6150-01-124-5849
NSN 6645-01-218-5234
NSN 5920-00-891-2771
NSN 6620-01-519-7234
NSN 4140-01-488-1169
NSN 5950-00-892-9902
NSN 5985-01-063-0856
NSN 5965-01-629-4663
NSN 5999-01-369-5671
NSN 6110-00-305-2838
NSN 6240-01-025-9692