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 5996-00-209-9517
NSN 6110-01-647-9386
NSN 6105-01-257-3063
NSN 5855-01-430-9689
NSN 5985-01-472-3658
NSN 6240-01-171-6452
NSN 5950-00-444-1226
NSN 6135-01-226-4071
NSN 5915-01-433-1397
NSN 6240-00-297-3919
NSN 6650-01-227-1632
NSN 5990-01-218-5160