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 5835-00-656-7317
NSN 6685-01-238-5622
NSN 2925-01-586-4574
NSN 6620-01-022-4104
NSN 6240-01-082-3387
NSN 6150-01-399-7843
NSN 5960-00-389-2915
NSN 6620-00-379-2856
NSN 6645-00-831-6826
NSN 5855-01-147-4785
NSN 5996-01-475-3592
NSN 6610-01-471-8130