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 5965-01-272-3480
NSN 5920-01-561-7212
NSN 6105-00-452-3855
NSN 5950-01-361-2912
NSN 6110-01-125-5627
NSN 5945-00-819-9587
NSN 5945-00-228-9366
NSN 5855-01-454-6956
NSN 2925-01-442-7812
NSN 5925-00-097-7490
NSN 5855-00-479-9819
NSN 5996-01-555-4224