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 5915-00-730-6761
NSN 5910-01-446-6623
NSN 5905-01-442-3473
NSN 5998-01-313-3442
NSN 7035-00-300-3208
NSN 5998-01-411-5900
NSN 6685-01-194-3931
NSN 5855-01-072-8025
NSN 7035-01-199-6915
NSN 5998-00-510-7871
NSN 5996-01-294-7047
NSN 6110-00-218-4737