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 5999-01-105-8931
NSN 5895-01-391-7724
NSN 6650-01-076-8625
NSN 6145-00-269-4271
NSN 5925-01-148-1186
NSN 5985-01-596-1181
NSN 6130-01-345-2053
NSN 5965-01-290-0535
NSN 4140-01-448-9725
NSN 6240-01-147-5424
NSN 5915-00-691-2702
NSN 5925-00-386-8702