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 6620-01-277-5799
NSN 6105-01-294-3986
NSN 5910-00-211-3573
NSN 5835-00-233-6327
NSN 6130-01-411-7735
NSN 6220-00-079-0851
NSN 5985-01-131-4488
NSN 6645-01-430-3576
NSN 6240-01-644-4767
NSN 6145-01-004-8343
NSN 5999-00-908-4118
NSN 5935-01-645-4038