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 5950-00-075-2377
NSN 5935-01-086-3225
NSN 5998-01-596-7007
NSN 5920-01-512-9393
NSN 5945-00-584-2046
NSN 5965-01-215-0993
NSN 6105-01-578-7537
NSN 5925-01-470-7737
NSN 5930-01-526-0113
NSN 5910-01-321-4912
NSN 6135-01-375-2624
NSN 5965-00-947-2310