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 5965-00-201-7479
NSN 5960-00-410-3500
NSN 5950-01-253-2800
NSN 5950-00-058-6392
NSN 2925-01-424-0235
NSN 5895-00-163-6420
NSN 5998-01-158-1853
NSN 5895-01-535-7300
NSN 5945-01-024-6180
NSN 6130-00-823-8481
NSN 5999-01-148-6536
NSN 6685-01-165-0576