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 5960-01-612-5408
NSN 5925-01-288-8651
NSN 6320-00-857-4073
NSN 5925-01-512-8126
NSN 5975-00-374-5245
NSN 5975-00-932-0295
NSN 5950-00-172-3379
NSN 5965-01-174-6995
NSN 5930-01-654-8035
NSN 5935-01-340-5869
NSN 6220-01-576-9066
NSN 5915-01-476-1521