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 5950-01-236-9269
NSN 5935-00-310-4811
NSN 6135-00-377-9165
NSN 5998-01-022-4796
NSN 5905-00-691-2218
NSN 5935-00-370-0040
NSN 5895-01-485-6660
NSN 5905-01-298-1471
NSN 6320-01-473-9024
NSN 6135-01-595-4779
NSN 6620-00-485-4136
NSN 6130-01-516-0339