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 6220-01-367-2923
NSN 6610-00-435-8932
NSN 5985-00-708-3705
NSN 5998-01-478-2912
NSN 6685-01-475-9753
NSN 6320-01-021-6633
NSN 5945-01-426-2311
NSN 5895-00-420-7042
NSN 6240-01-441-0027
NSN 5998-01-032-2304
NSN 5945-01-344-3884
NSN 5930-01-017-7789