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 5975-01-541-1294
NSN 6650-00-221-7119
NSN 6220-01-534-6695
NSN 5960-00-398-1029
NSN 5998-01-634-0604
NSN 5998-00-856-8394
NSN 5965-01-291-8208
NSN 5905-00-466-3350
NSN 5975-01-155-9242
NSN 5990-01-514-8708
NSN 5915-00-760-0291
NSN 6610-00-239-8613