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 5985-01-022-2897
NSN 5855-01-100-3272
NSN 5998-01-224-7267
NSN 6620-01-512-2016
NSN 5895-01-443-2482
NSN 5975-01-198-1819
NSN 5975-01-024-0678
NSN 6620-00-904-1596
NSN 5910-01-162-7022
NSN 5965-00-858-5398
NSN 6130-00-182-1451
NSN 6150-01-298-2868