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 5999-00-152-5009
NSN 6610-00-542-6307
NSN 5915-01-592-3411
NSN 6145-00-730-3933
NSN 5999-01-020-9543
NSN 6645-01-537-1066
NSN 5960-01-627-6547
NSN 5935-01-249-3102
NSN 5855-01-458-8137
NSN 6135-00-840-6451
NSN 5996-00-112-2892
NSN 6130-01-463-2874