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 5990-00-960-6310
NSN 5835-01-170-5537
NSN 6620-00-804-8272
NSN 6240-01-581-4004
NSN 5985-01-551-1218
NSN 6150-01-571-6668
NSN 6220-01-532-9800
NSN 5945-01-030-9571
NSN 6110-01-286-5512
NSN 5905-01-373-7652
NSN 5905-01-085-4612
NSN 5910-00-229-3253