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 6320-01-618-7800
NSN 5905-01-332-2153
NSN 6110-01-155-1626
NSN 6110-01-178-4769
NSN 6130-01-555-8062
NSN 5950-00-914-9540
NSN 6130-01-476-9148
NSN 5915-01-240-6450
NSN 5985-01-131-9644
NSN 5985-01-338-7673
NSN 6135-01-360-1620
NSN 5925-00-581-0393