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 6150-00-829-7699
NSN 6320-01-311-3286
NSN 5925-01-246-4520
NSN 5910-01-535-1028
NSN 6610-01-442-3509
NSN 6145-01-396-1769
NSN 2925-00-228-8854
NSN 6135-01-411-3212
NSN 5945-01-055-7486
NSN 6150-00-554-7591
NSN 5996-01-300-1111
NSN 5920-00-162-2218