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 6610-01-176-9314
NSN 6240-01-548-8066
NSN 5996-01-018-8542
NSN 5999-01-183-9833
NSN 5999-00-686-2977
NSN 6320-01-082-2459
NSN 5996-00-815-9710
NSN 5835-01-476-8210
NSN 6685-01-062-1430
NSN 6145-00-912-5712
NSN 5965-01-659-1685
NSN 5998-00-434-5266