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 6135-00-951-3426
NSN 5895-00-497-4903
NSN 5835-01-055-6063
NSN 5925-00-833-2703
NSN 5915-01-167-2358
NSN 6110-01-060-5238
NSN 5975-01-230-8385
NSN 5930-01-003-6323
NSN 5895-00-424-6296
NSN 5925-00-233-5125
NSN 5960-01-288-8910
NSN 2925-00-635-6907