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 7035-00-283-3112
NSN 5985-01-483-6108
NSN 6145-00-141-8095
NSN 5915-00-686-9149
NSN 5920-01-183-7938
NSN 5925-00-304-3315
NSN 5915-01-512-5697
NSN 5930-00-395-4688
NSN 6130-01-391-2598
NSN 5835-01-355-3654
NSN 5930-00-148-1128
NSN 6320-01-332-7020