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 5895-01-308-6186
NSN 5965-01-274-7933
NSN 2925-01-633-4048
NSN 5895-00-493-0042
NSN 5998-00-089-2285
NSN 5985-01-439-8726
NSN 6105-00-252-3233
NSN 6685-01-333-7597
NSN 5915-01-230-4518
NSN 6610-01-533-6046
NSN 5999-00-402-0812
NSN 5910-01-342-1190