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 5930-00-753-7889
NSN 6650-00-098-6128
NSN 6220-01-607-0130
NSN 5915-01-562-9896
NSN 4140-01-094-8778
NSN 5905-01-465-4684
NSN 5920-00-490-1226
NSN 6650-01-555-8819
NSN 2925-00-960-9850
NSN 5960-01-275-7552
NSN 6240-00-201-9011
NSN 6105-01-356-0858