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 6105-01-224-7258
NSN 5945-01-239-1478
NSN 6240-01-214-0308
NSN 6685-01-569-6995
NSN 5925-01-650-5625
NSN 6610-00-377-7956
NSN 5855-00-149-0766
NSN 5996-01-522-9470
NSN 5920-00-152-4003
NSN 6645-00-451-6462
NSN 6150-01-415-0916
NSN 5998-01-400-0660