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 6150-00-446-7206
NSN 6150-01-629-8099
NSN 5905-00-516-2871
NSN 5915-00-262-4390
NSN 2925-01-653-0629
NSN 5930-01-206-4390
NSN 5905-01-170-9089
NSN 6110-01-615-1894
NSN 5930-01-365-8162
NSN 5835-01-346-9575
NSN 5996-00-218-1123
NSN 5965-01-522-7706