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 5960-01-100-5065
NSN 5965-01-583-3774
NSN 6105-00-862-6805
NSN 5975-00-230-4824
NSN 6110-01-412-6602
NSN 6220-01-124-0923
NSN 6130-00-617-5516
NSN 6220-01-387-3266
NSN 5998-01-060-7151
NSN 6240-01-658-3177
NSN 2925-01-025-0082
NSN 5965-00-267-4173