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 6150-01-214-9891
NSN 5998-01-146-0841
NSN 6105-01-473-7499
NSN 4140-00-245-2715
NSN 5905-01-203-6017
NSN 6110-01-437-8559
NSN 5999-01-416-1474
NSN 5855-00-237-4088
NSN 5835-01-392-7683
NSN 6610-01-543-8567
NSN 2925-01-055-7607
NSN 5925-01-512-5100