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 6105-01-477-6406
NSN 5996-01-254-2510
NSN 7035-00-104-7613
NSN 6145-01-411-6454
NSN 5930-00-181-3915
NSN 2925-01-422-1542
NSN 6650-01-447-7962
NSN 5985-00-989-5470
NSN 6685-01-420-2478
NSN 5855-00-477-9943
NSN 6620-00-269-5168
NSN 5895-01-007-9678