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 6620-01-413-9243
NSN 5950-01-525-1128
NSN 5855-01-498-4949
NSN 6645-00-963-9491
NSN 5915-01-210-1078
NSN 4140-01-106-1080
NSN 6110-01-306-1234
NSN 6240-01-267-0345
NSN 5960-01-502-6270
NSN 6685-00-188-1991
NSN 5985-01-390-7619
NSN 6150-01-613-5947