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 6130-00-769-3868
NSN 5950-01-492-5919
NSN 7035-01-485-9723
NSN 5925-01-035-7440
NSN 6620-01-445-4295
NSN 5835-00-617-3578
NSN 6645-00-262-7448
NSN 6645-01-545-6853
NSN 6620-00-109-5607
NSN 6240-01-373-6417
NSN 5915-01-055-5643
NSN 5975-00-876-4299