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 6110-00-858-6770
NSN 6610-01-018-7426
NSN 6650-01-181-6037
NSN 5895-00-239-9138
NSN 6105-01-641-9590
NSN 5935-01-562-8504
NSN 7035-01-485-8680
NSN 6220-00-480-9172
NSN 5985-00-899-6164
NSN 6110-01-268-1723
NSN 5960-00-287-9932
NSN 6610-00-079-1508