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 6145-01-615-6436
NSN 5960-00-617-9312
NSN 5935-01-519-7227
NSN 5999-01-197-6952
NSN 5855-01-053-0679
NSN 6135-00-152-8729
NSN 7035-00-756-4374
NSN 5930-00-030-2839
NSN 6145-01-060-0446
NSN 5935-01-534-5936
NSN 7035-01-281-3642
NSN 6240-01-157-0636