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 6320-01-198-4024
NSN 5920-01-440-3458
NSN 5996-01-224-5515
NSN 5855-00-821-7512
NSN 7035-01-614-0712
NSN 6650-00-253-4783
NSN 5855-00-411-8688
NSN 5985-01-198-5146
NSN 5985-01-104-5450
NSN 6135-01-501-0833
NSN 5855-00-013-1244
NSN 5996-01-258-5888