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 6110-01-325-1884
NSN 5945-01-238-0111
NSN 5930-01-598-5446
NSN 5925-01-085-9944
NSN 5950-01-333-2371
NSN 5905-01-451-9022
NSN 5945-01-371-5553
NSN 5930-01-029-4166
NSN 5999-00-201-6382
NSN 5965-01-227-4517
NSN 6110-00-387-3911
NSN 5905-00-828-8113