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 6685-01-443-2983
NSN 5996-01-581-5787
NSN 6150-01-600-0671
NSN 5960-00-267-1635
NSN 7035-00-541-8516
NSN 4140-00-253-1801
NSN 7035-01-123-8723
NSN 5935-01-510-9913
NSN 5895-00-823-5976
NSN 5965-01-281-3895
NSN 5996-00-264-8929
NSN 5935-01-652-9639