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 6645-00-435-5610
NSN 6685-01-218-3043
NSN 5990-01-548-3711
NSN 5925-01-634-0664
NSN 5950-00-185-5121
NSN 5996-01-307-2756
NSN 6145-01-199-1430
NSN 5905-01-464-2822
NSN 5945-01-634-0588
NSN 5915-01-512-0754
NSN 5999-01-482-4552
NSN 5945-00-878-5479