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 5835-01-062-2235
NSN 6135-01-415-1163
NSN 5910-00-275-0827
NSN 5905-00-067-5998
NSN 5895-01-442-5818
NSN 5895-01-088-6458
NSN 6150-00-652-7794
NSN 6620-01-372-4168
NSN 5975-00-873-4826
NSN 5960-01-399-4327
NSN 5950-00-650-8739
NSN 5925-00-781-2994