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 5930-00-699-5712
NSN 5925-01-333-1610
NSN 6650-01-304-1739
NSN 6610-00-335-6083
NSN 2925-00-033-4621
NSN 5910-01-518-8257
NSN 5960-01-215-9232
NSN 5910-00-655-3036
NSN 6105-01-485-1846
NSN 5990-01-553-6859
NSN 5965-01-418-7226
NSN 5975-01-412-0782