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 6105-01-435-4376
NSN 6220-00-006-5157
NSN 5998-01-221-2168
NSN 5920-01-006-9821
NSN 6320-00-521-9350
NSN 6135-01-643-5809
NSN 5935-00-492-4594
NSN 2925-00-060-8292
NSN 5945-01-383-8423
NSN 6150-01-197-8116
NSN 6220-01-490-6316
NSN 6220-01-539-0923