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 4140-01-632-1081
NSN 5999-01-039-5054
NSN 7035-01-145-5059
NSN 6620-01-178-7838
NSN 2925-01-269-3861
NSN 5945-00-636-6904
NSN 5925-01-311-1285
NSN 5950-00-110-7833
NSN 6145-01-373-5059
NSN 6650-00-960-5040
NSN 5998-00-827-5719
NSN 6110-00-455-9162