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 6645-01-275-5328
NSN 5960-01-010-3083
NSN 5855-01-250-2421
NSN 5996-00-100-1238
NSN 6145-01-509-4057
NSN 5855-01-088-4353
NSN 5855-01-598-7392
NSN 5998-01-517-9839
NSN 5960-00-647-4989
NSN 5960-01-317-3800
NSN 6135-00-416-2898
NSN 6145-01-502-9751