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 5835-01-464-7038
NSN 6620-00-788-9189
NSN 6220-00-790-9574
NSN 5935-01-254-2968
NSN 6650-01-535-9190
NSN 6135-00-255-1340
NSN 6240-01-036-4073
NSN 5905-01-106-0678
NSN 5935-01-398-9114
NSN 6145-01-080-5106
NSN 6105-00-295-2558
NSN 6135-01-205-5965