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 6645-00-735-1481
NSN 6685-00-257-2987
NSN 6105-00-866-6830
NSN 5935-00-078-9992
NSN 2925-01-604-8984
NSN 6150-00-300-0395
NSN 5935-01-341-6460
NSN 5965-01-196-7760
NSN 6220-01-356-9188
NSN 6685-01-264-6652
NSN 5855-01-364-1005
NSN 5905-01-162-0737