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 6135-00-377-9165
NSN 5895-00-248-7258
NSN 7035-01-474-9537
NSN 5960-00-925-2111
NSN 6610-01-136-4866
NSN 7035-01-093-9544
NSN 6645-01-457-8642
NSN 5855-00-400-2622
NSN 5990-01-563-1554
NSN 6150-00-846-2119
NSN 5945-00-278-9482
NSN 6685-01-545-7910