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 5895-01-415-5786
NSN 6220-00-498-8098
NSN 5915-00-019-7564
NSN 5960-01-307-5409
NSN 6650-01-424-3947
NSN 5915-01-296-1033
NSN 5999-01-566-9121
NSN 5965-00-348-4165
NSN 6150-01-132-2487
NSN 6645-01-430-2420
NSN 5990-01-641-5782
NSN 5905-01-140-7133