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 6105-01-600-0366
NSN 5935-01-239-6704
NSN 6130-00-079-1269
NSN 6220-01-268-6400
NSN 6220-00-407-2891
NSN 7035-00-585-2113
NSN 6610-01-357-4345
NSN 4140-00-803-8997
NSN 5910-01-310-6025
NSN 5930-01-510-4165
NSN 5930-01-024-9288
NSN 6150-00-328-8989