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 5835-01-651-7208
NSN 5930-01-265-8122
NSN 6105-01-456-4488
NSN 6145-01-584-4094
NSN 6110-01-023-2248
NSN 2925-01-593-2542
NSN 6135-01-101-5039
NSN 5960-01-415-3574
NSN 6145-01-644-8675
NSN 5960-01-487-6436
NSN 5855-01-228-0942
NSN 5915-01-444-4069