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 5999-01-081-4474
NSN 5905-01-360-5064
NSN 5930-00-302-4018
NSN 5945-00-106-3593
NSN 6110-01-278-8140
NSN 6685-00-211-4317
NSN 5998-01-578-7052
NSN 5960-00-289-6591
NSN 4140-01-642-2272
NSN 5965-01-088-5414
NSN 7035-00-076-4097
NSN 6240-00-057-9498