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 5910-01-067-4893
NSN 6150-01-287-9958
NSN 6130-01-142-4522
NSN 6220-01-060-1096
NSN 5965-01-302-6456
NSN 5998-01-371-7040
NSN 6130-01-020-1984
NSN 5935-00-104-5901
NSN 6145-01-116-1274
NSN 5835-01-016-8461
NSN 6320-01-190-1397
NSN 6110-00-806-5459