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 7035-01-463-3368
NSN 6110-01-395-3421
NSN 5975-01-170-8956
NSN 5999-01-045-1862
NSN 6145-01-149-2964
NSN 5960-00-126-4729
NSN 6650-00-161-4122
NSN 7035-01-553-5036
NSN 5965-01-549-1249
NSN 5855-01-180-5369
NSN 5910-00-011-8270
NSN 5910-01-547-4612