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 6650-00-236-0724
NSN 5910-01-461-3108
NSN 5895-00-051-4758
NSN 6110-01-284-6524
NSN 5925-01-289-9340
NSN 6220-00-133-7904
NSN 5910-01-479-4977
NSN 5930-00-644-4476
NSN 6145-00-125-0742
NSN 5925-01-365-3350
NSN 5965-01-585-6958
NSN 5910-00-097-3939