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 5895-01-397-6995
NSN 5950-01-048-4351
NSN 5935-01-421-5365
NSN 6240-01-257-1052
NSN 5905-01-581-7152
NSN 5965-00-857-6622
NSN 5990-00-226-1152
NSN 5855-01-400-1590
NSN 5905-01-618-9926
NSN 6220-00-176-0273
NSN 6145-00-726-0275
NSN 5925-01-574-1580