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 6650-01-250-5164
NSN 5996-01-627-1767
NSN 5945-00-472-1432
NSN 6145-00-100-4358
NSN 6620-01-484-6904
NSN 5925-00-865-9618
NSN 6145-01-011-8251
NSN 6645-01-450-4849
NSN 6110-00-170-6520
NSN 6145-01-274-0103
NSN 5905-01-407-7822
NSN 5965-01-295-8123