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 5985-01-630-3202
NSN 7035-00-052-2188
NSN 6685-00-954-4022
NSN 5915-01-191-7554
NSN 5925-01-014-7991
NSN 2925-00-860-3652
NSN 5960-01-094-1076
NSN 5985-00-171-5084
NSN 5985-00-549-9660
NSN 5965-01-572-9399
NSN 4140-00-450-6883
NSN 6130-01-324-1834