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 5999-01-457-5386
NSN 5950-01-581-1139
NSN 4140-01-111-8297
NSN 6240-01-013-6052
NSN 5990-01-187-8050
NSN 5935-00-786-5587
NSN 6320-01-322-8340
NSN 6240-01-576-0884
NSN 2925-00-111-4097
NSN 5960-01-649-1341
NSN 6645-01-422-9672
NSN 5998-00-861-6130