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 5935-01-480-7652
NSN 5935-00-159-6808
NSN 5935-00-875-3230
NSN 6320-00-538-2132
NSN 5960-00-266-6741
NSN 5910-01-633-9963
NSN 6685-01-125-2295
NSN 6145-00-458-6437
NSN 5945-01-397-4654
NSN 6145-01-310-4023
NSN 7035-01-462-0516
NSN 5915-01-491-9998