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 6110-00-260-0130
NSN 6135-00-932-3136
NSN 6110-00-309-2898
NSN 5960-01-624-1170
NSN 5895-00-915-6403
NSN 6220-01-449-9541
NSN 6685-01-087-9081
NSN 5960-01-418-2641
NSN 2925-01-156-9570
NSN 5950-01-096-1186
NSN 6130-01-413-8110
NSN 5895-01-644-1916