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 6685-00-316-1157
NSN 6620-00-307-3024
NSN 5985-01-401-5387
NSN 6645-01-497-6543
NSN 5960-01-395-9834
NSN 6685-01-655-6079
NSN 5996-01-653-4930
NSN 5855-01-147-6024
NSN 6240-01-409-1015
NSN 7035-01-091-7481
NSN 5920-00-074-4654
NSN 5855-00-014-5008