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 5855-01-089-2248
NSN 5920-01-032-4756
NSN 6135-01-604-8739
NSN 6220-01-398-8937
NSN 6240-00-635-9953
NSN 5935-01-037-7822
NSN 5910-00-136-4228
NSN 5965-00-698-0433
NSN 5950-00-266-9045
NSN 6685-00-598-1944
NSN 5996-00-202-6576
NSN 5985-01-607-0049