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 6645-00-479-9334
NSN 5996-01-425-7261
NSN 5965-01-426-1707
NSN 5935-00-803-6785
NSN 5999-01-085-8294
NSN 6320-00-228-5678
NSN 6220-01-031-6820
NSN 6650-01-121-5754
NSN 5915-01-145-4989
NSN 5999-01-449-9527
NSN 5985-01-029-3648
NSN 6240-01-530-3554