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 6240-00-201-9011
NSN 5910-01-446-6623
NSN 5835-01-502-9228
NSN 5915-01-259-4373
NSN 5945-01-138-2706
NSN 5895-01-315-4082
NSN 5960-01-219-5504
NSN 2925-01-543-5571
NSN 6105-00-610-7788
NSN 6105-01-407-8697
NSN 5975-01-426-8968
NSN 2925-01-374-2402