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 5998-01-590-1039
NSN 6320-00-331-7138
NSN 6130-01-026-0603
NSN 5935-00-894-3838
NSN 5950-01-134-9806
NSN 6685-00-517-7132
NSN 5910-01-487-0120
NSN 5998-01-392-1027
NSN 6220-00-594-8817
NSN 5925-01-203-3233
NSN 5996-01-479-4086
NSN 6145-00-153-2818