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 6145-01-121-2843
NSN 6645-00-270-6817
NSN 5996-01-011-7315
NSN 5985-00-937-0556
NSN 5920-01-278-6508
NSN 6320-01-470-6826
NSN 4140-00-255-7799
NSN 5920-01-474-5404
NSN 6110-01-216-9348
NSN 6610-01-142-8323
NSN 6645-01-451-1295
NSN 5855-00-010-6492