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 5985-01-357-6801
NSN 5985-01-076-3966
NSN 6135-01-559-9637
NSN 6145-00-016-8768
NSN 5998-01-356-7579
NSN 5930-00-509-6184
NSN 6240-01-059-3563
NSN 2925-00-705-5180
NSN 6240-00-186-6611
NSN 6135-01-470-9738
NSN 5920-00-294-0753
NSN 6145-01-343-6712