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 5945-01-369-2733
NSN 6135-01-025-8109
NSN 6685-01-377-6433
NSN 5960-01-279-2589
NSN 7035-01-435-4009
NSN 6650-01-551-3700
NSN 6240-00-204-9355
NSN 5975-00-575-6665
NSN 5975-01-565-7260
NSN 6610-00-287-6884
NSN 6220-01-010-3958
NSN 6105-00-864-6615