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 6240-01-391-7773
NSN 5910-01-100-2798
NSN 6135-00-248-4102
NSN 5975-01-032-8090
NSN 5950-01-099-5014
NSN 6105-01-090-1166
NSN 5965-00-950-0602
NSN 5925-01-211-6660
NSN 6105-00-850-3634
NSN 5925-00-876-1042
NSN 5945-00-981-5667
NSN 5905-00-204-0469