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 7035-00-535-8109
NSN 5975-01-381-7174
NSN 6610-01-480-0586
NSN 5998-00-541-8792
NSN 5895-00-209-9766
NSN 5975-01-625-3926
NSN 5945-01-121-2781
NSN 5925-00-539-8372
NSN 6150-01-566-8415
NSN 5990-00-403-9768
NSN 5950-01-244-8219
NSN 5985-01-444-1552