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 5855-01-469-6123
NSN 5910-01-278-0641
NSN 5905-01-336-1253
NSN 5950-00-739-7864
NSN 5985-01-272-9745
NSN 5965-01-067-9280
NSN 5925-01-408-8765
NSN 5985-01-356-8460
NSN 6150-00-045-9244
NSN 5920-01-085-8374
NSN 5915-01-496-2314
NSN 6610-01-212-9817