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 6320-00-521-9350
NSN 2925-01-231-6312
NSN 5996-01-139-2843
NSN 5975-01-535-0292
NSN 6620-00-220-2157
NSN 5965-00-815-2525
NSN 6130-00-082-2633
NSN 5910-01-096-6174
NSN 6105-00-026-9908
NSN 6240-00-269-3346
NSN 5895-01-534-7568
NSN 5975-00-314-1667