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 7035-01-495-1766
NSN 5965-01-250-0446
NSN 5910-01-122-4722
NSN 6610-01-263-1752
NSN 6620-00-983-4171
NSN 5835-00-137-7945
NSN 5950-00-973-9976
NSN 5998-01-112-6367
NSN 5985-00-022-3506
NSN 7035-01-211-5636
NSN 5960-01-166-7480
NSN 5996-01-199-4148