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 5965-00-653-4782
NSN 5855-00-862-3345
NSN 5910-01-522-5988
NSN 6685-01-527-5561
NSN 5910-01-165-1882
NSN 5905-01-433-2051
NSN 6240-01-522-4096
NSN 5975-01-305-7792
NSN 5930-01-310-8565
NSN 6110-00-204-5697
NSN 5910-01-612-3253
NSN 5998-01-431-7010