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 6135-01-238-2878
NSN 6220-01-423-8319
NSN 6145-01-088-7999
NSN 5895-01-241-2321
NSN 5960-01-487-6436
NSN 6220-01-231-9813
NSN 6645-01-156-6741
NSN 2925-01-472-4423
NSN 5895-00-177-2338
NSN 5996-01-020-5759
NSN 5945-01-169-8214
NSN 7035-00-470-4977