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 5996-00-246-8295
NSN 5998-01-044-6345
NSN 5910-01-412-1360
NSN 5985-01-602-9023
NSN 6105-00-891-7357
NSN 5965-00-236-0016
NSN 6220-01-393-4119
NSN 5835-01-555-8963
NSN 5998-01-512-1243
NSN 6610-00-292-9895
NSN 7035-01-145-5059
NSN 6320-01-253-1028