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 6240-01-494-9202
NSN 5985-00-365-6806
NSN 5910-01-504-9086
NSN 5935-00-170-8346
NSN 7035-00-731-8729
NSN 5999-01-519-2442
NSN 6150-00-661-0184
NSN 5985-00-339-2318
NSN 5895-01-461-3288
NSN 6105-01-170-5420
NSN 6145-00-843-8744
NSN 5975-00-070-5987