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 5930-01-053-9883
NSN 5835-00-707-6266
NSN 5835-01-100-3265
NSN 6610-01-440-9913
NSN 5925-01-447-7220
NSN 6645-00-720-3953
NSN 6620-00-613-3023
NSN 5965-01-030-7253
NSN 5999-00-127-3495
NSN 5950-00-686-9945
NSN 5999-01-658-1006
NSN 6620-00-564-9412