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 6610-01-471-3467
NSN 5925-01-129-6222
NSN 5930-01-553-8522
NSN 5985-00-615-3878
NSN 6130-00-959-5800
NSN 5910-01-328-3863
NSN 5835-01-602-0311
NSN 5960-00-539-7914
NSN 5905-01-421-5526
NSN 5945-01-334-2636
NSN 5835-01-170-5537
NSN 5855-00-482-9876