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 5905-01-359-1963
NSN 6685-01-206-1066
NSN 5855-01-346-7682
NSN 5925-01-182-8169
NSN 5855-01-267-2751
NSN 5965-00-575-4089
NSN 5915-01-209-8891
NSN 5960-01-529-8797
NSN 6220-00-500-3198
NSN 5965-01-553-4970
NSN 5920-00-348-9134
NSN 5920-01-173-9925