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 5960-01-265-1393
NSN 6105-00-078-9372
NSN 6150-01-189-4157
NSN 6130-01-383-3127
NSN 5925-01-200-6825
NSN 5855-01-556-7421
NSN 5975-01-535-1052
NSN 5855-01-100-3272
NSN 5999-01-112-7351
NSN 5960-01-190-8937
NSN 5960-00-168-3594
NSN 6110-01-432-0003