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 5910-00-019-2366
NSN 6145-01-485-4690
NSN 5985-01-047-5236
NSN 6105-01-497-3423
NSN 5920-01-117-0522
NSN 6685-01-222-0141
NSN 6610-00-932-2465
NSN 6150-01-469-6066
NSN 5905-00-069-3665
NSN 5855-01-614-1661
NSN 5945-00-148-8285
NSN 5996-01-433-7082