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 2925-01-146-0278
NSN 5998-01-058-2469
NSN 5985-01-276-1042
NSN 5915-01-252-3975
NSN 5895-01-620-9368
NSN 6220-00-391-1076
NSN 5910-01-481-4199
NSN 5999-00-448-4123
NSN 5925-00-092-0578
NSN 5998-01-500-8255
NSN 5960-01-041-9512
NSN 5905-01-431-6863