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 7035-01-131-1168
NSN 6150-00-983-7515
NSN 6320-01-046-5228
NSN 5855-01-472-2484
NSN 6130-00-205-1714
NSN 6610-00-081-2365
NSN 5930-01-283-4435
NSN 5975-01-239-9875
NSN 5998-01-502-5936
NSN 5945-01-484-9325
NSN 6320-01-532-4026
NSN 5965-01-230-2350