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 5925-01-485-0125
NSN 5895-01-410-7447
NSN 6145-01-463-4075
NSN 7035-01-567-5486
NSN 5925-01-546-8548
NSN 6130-01-126-5794
NSN 5835-01-090-0784
NSN 5920-01-412-8415
NSN 5990-00-170-4239
NSN 6620-01-302-1537
NSN 6135-00-553-7995
NSN 5920-01-066-3709