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 6130-00-499-8950
NSN 5945-01-012-2235
NSN 5905-01-122-8708
NSN 5999-01-416-3371
NSN 5950-01-378-6564
NSN 5950-01-451-8791
NSN 5910-01-311-1833
NSN 5905-01-547-0054
NSN 6240-00-038-7540
NSN 4140-01-382-9517
NSN 5855-01-205-7030
NSN 6145-01-362-7284