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 5910-01-191-6316
NSN 6320-00-790-4844
NSN 6645-01-383-8139
NSN 5950-01-597-3850
NSN 5895-00-267-7430
NSN 5895-00-623-9859
NSN 5975-01-560-4845
NSN 6145-00-140-1605
NSN 5925-00-107-2688
NSN 6645-00-100-7218
NSN 5996-00-156-5967
NSN 6610-00-524-0724