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 5930-01-278-2844
NSN 5895-00-269-3848
NSN 6620-01-332-1691
NSN 7035-00-941-4949
NSN 7035-01-204-7481
NSN 5975-00-872-2183
NSN 6620-01-440-9810
NSN 6240-01-198-6623
NSN 6685-01-504-1292
NSN 5975-00-256-1486
NSN 5990-01-130-4959
NSN 6650-01-532-6966