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 5998-01-146-4367
NSN 6105-00-127-5465
NSN 5925-01-391-4986
NSN 6130-01-611-9969
NSN 5975-01-451-4719
NSN 6110-00-753-7677
NSN 2925-01-187-5480
NSN 5935-01-273-7328
NSN 6650-00-597-7313
NSN 6110-01-238-9160
NSN 5910-00-466-3614
NSN 6620-01-315-8616