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 5855-01-544-1482
NSN 5950-01-124-0851
NSN 6220-00-816-8131
NSN 5925-01-371-2876
NSN 5895-00-578-5477
NSN 6220-00-187-8569
NSN 4140-01-589-4964
NSN 5950-01-356-1368
NSN 5895-01-366-4278
NSN 5960-00-515-7366
NSN 6645-00-433-3075
NSN 5975-00-675-4341