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 6650-01-181-6037
NSN 5965-01-012-1065
NSN 2925-00-707-6770
NSN 5905-01-296-0993
NSN 6105-00-659-3890
NSN 5930-01-265-6888
NSN 6320-01-459-6992
NSN 5975-00-503-4697
NSN 5925-00-999-1710
NSN 6685-00-755-7704
NSN 6240-00-753-2031
NSN 5985-01-219-4702