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 6145-01-654-5185
NSN 5945-01-033-0706
NSN 5945-01-090-0890
NSN 6620-00-109-9498
NSN 5905-01-596-0835
NSN 5905-01-501-2518
NSN 5910-00-439-3743
NSN 5996-01-512-9275
NSN 6110-00-066-4548
NSN 5930-00-061-2357
NSN 5999-00-100-5761
NSN 5965-00-275-0491