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 6110-00-673-9130
NSN 5925-01-024-1862
NSN 2925-01-197-7864
NSN 6645-01-500-0827
NSN 5998-01-433-4102
NSN 2925-01-144-7106
NSN 2925-00-455-2367
NSN 6110-01-335-2841
NSN 6685-00-917-7277
NSN 5998-01-613-8383
NSN 5996-01-600-0348
NSN 4140-01-492-5268