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 6685-00-935-6961
NSN 5920-01-576-8240
NSN 7035-01-653-2246
NSN 6320-00-456-0836
NSN 6320-00-242-3300
NSN 5935-01-263-7894
NSN 5935-00-637-2643
NSN 6610-01-330-7839
NSN 6220-00-296-4101
NSN 5930-01-459-7252
NSN 5835-00-655-1000
NSN 5996-01-038-3850