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 5855-01-076-9369
NSN 5999-00-333-9620
NSN 5996-01-065-0939
NSN 5999-00-115-1084
NSN 5998-01-317-1754
NSN 5965-01-357-2317
NSN 4140-00-739-7033
NSN 6645-01-203-9542
NSN 6145-01-356-2176
NSN 2925-01-238-9974
NSN 5975-01-506-4240
NSN 5920-00-035-4846