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 5915-00-735-5195
NSN 5925-01-040-6733
NSN 6645-00-171-9639
NSN 6130-01-571-7932
NSN 5985-01-432-8076
NSN 5935-01-126-2693
NSN 6135-00-228-8140
NSN 6685-00-729-6498
NSN 6145-01-351-6342
NSN 5930-00-233-2475
NSN 5945-00-866-1313
NSN 6145-00-905-6797