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 6620-01-623-7266
NSN 6105-00-435-2713
NSN 5855-01-286-9928
NSN 5999-01-189-7989
NSN 5925-00-884-5469
NSN 5895-00-118-7779
NSN 2925-01-099-7075
NSN 5855-01-598-7392
NSN 6610-01-485-5083
NSN 5925-00-235-2870
NSN 6645-01-133-8359
NSN 5999-01-582-1330