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 5910-00-801-8276
NSN 5895-00-191-2146
NSN 6110-01-395-3421
NSN 6145-00-081-6686
NSN 6145-00-414-1454
NSN 6320-01-056-1164
NSN 5999-01-007-8208
NSN 5835-01-306-5276
NSN 6610-01-516-4921
NSN 5925-01-386-7084
NSN 6650-01-140-4463
NSN 6645-01-024-8199