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 6650-00-185-8344
NSN 5930-00-988-6054
NSN 6130-01-056-9928
NSN 5920-01-119-3652
NSN 6150-01-422-4208
NSN 6620-01-330-3917
NSN 5998-01-585-6213
NSN 6320-00-313-9114
NSN 5975-01-007-7323
NSN 6110-00-753-7677
NSN 5950-00-699-6931
NSN 2925-01-140-1015