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 5960-01-481-3722
NSN 5910-01-610-7232
NSN 5950-01-442-8270
NSN 6610-01-076-4800
NSN 6610-00-641-3015
NSN 5975-00-549-1718
NSN 5996-00-942-7912
NSN 5945-01-571-8594
NSN 6650-01-521-7872
NSN 5965-01-592-7749
NSN 5960-01-486-6629
NSN 5975-00-284-6662