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 6610-01-193-2169
NSN 5975-00-665-3644
NSN 6610-01-564-4084
NSN 5920-00-106-1454
NSN 5999-01-044-5417
NSN 6650-01-532-6966
NSN 5985-01-472-7046
NSN 5945-00-539-6834
NSN 5965-01-605-3878
NSN 5985-00-144-3161
NSN 5855-01-246-4274
NSN 5990-00-886-3685