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 5925-01-619-2942
NSN 5925-01-024-9568
NSN 5945-00-231-1290
NSN 5975-01-607-6129
NSN 6645-01-376-8022
NSN 6105-01-423-1417
NSN 6610-01-062-9994
NSN 5920-01-215-0497
NSN 6220-01-133-4286
NSN 5925-01-026-0891
NSN 5925-01-175-5059
NSN 5945-00-507-6436