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 5999-00-074-4365
NSN 5930-00-080-3770
NSN 7035-00-155-9513
NSN 5935-00-596-2684
NSN 5965-01-029-5222
NSN 5999-01-294-6647
NSN 7035-00-371-7749
NSN 5945-00-248-2973
NSN 5996-00-162-2017
NSN 6135-00-043-4312
NSN 5975-01-371-2403
NSN 5835-01-193-6192