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 6105-00-275-0826
NSN 6645-01-099-2910
NSN 6620-01-361-4796
NSN 6240-01-560-0910
NSN 6135-01-648-4875
NSN 5998-01-308-4197
NSN 6650-00-067-3572
NSN 6110-01-220-8639
NSN 5915-01-215-2159
NSN 5855-00-165-3093
NSN 5996-01-416-9391
NSN 6150-01-422-3592