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 5925-01-508-3849
NSN 6110-01-294-7827
NSN 5910-01-301-4803
NSN 6135-00-179-8305
NSN 6685-01-572-5984
NSN 6145-01-289-5039
NSN 2925-01-069-5324
NSN 5965-00-729-6835
NSN 5935-00-221-0925
NSN 5945-01-519-8887
NSN 6240-00-863-6105
NSN 5996-00-738-7841