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 5960-01-207-9544
NSN 6645-00-799-9459
NSN 5905-01-542-9474
NSN 5996-01-369-7999
NSN 5945-00-960-7367
NSN 6650-01-606-9209
NSN 6610-01-631-1184
NSN 6150-01-046-2138
NSN 5855-01-510-9416
NSN 6110-01-332-1849
NSN 6130-01-605-1266
NSN 5855-01-054-9014