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 5998-01-434-8336
NSN 6135-01-230-4399
NSN 5996-00-897-8867
NSN 5835-01-013-9321
NSN 5925-01-364-9184
NSN 5950-00-726-7613
NSN 5835-01-150-6084
NSN 5835-01-115-4056
NSN 6320-01-506-7497
NSN 5990-00-933-5314
NSN 6320-01-106-4414
NSN 6645-00-108-6479