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 5985-00-009-1430
NSN 7035-01-411-6062
NSN 5945-01-261-7849
NSN 6220-01-612-0854
NSN 5998-01-077-3605
NSN 2925-01-257-6225
NSN 6220-01-104-3006
NSN 5945-01-157-4611
NSN 5925-01-652-9617
NSN 6145-01-250-5095
NSN 5835-01-382-4592
NSN 5996-01-247-7671