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 5998-00-236-6529
NSN 5965-01-088-5414
NSN 6145-01-376-5398
NSN 5915-00-269-4463
NSN 5935-01-018-6186
NSN 5960-00-475-4950
NSN 5998-01-410-7287
NSN 5835-01-571-4083
NSN 5950-00-495-4663
NSN 6610-01-421-4396
NSN 5998-01-383-5939
NSN 6320-00-238-9973