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 6135-01-592-2765
NSN 5998-00-998-3848
NSN 7035-01-064-8212
NSN 5985-00-236-4476
NSN 5998-00-026-1918
NSN 6110-00-493-7435
NSN 2925-01-645-2948
NSN 6220-01-020-6181
NSN 6240-00-081-6889
NSN 5965-00-170-5254
NSN 2925-01-263-1357
NSN 2925-01-350-8372