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 5945-01-655-9185
NSN 4140-01-247-4837
NSN 5998-01-361-6785
NSN 6110-01-140-8780
NSN 5975-00-987-2639
NSN 5945-01-025-3183
NSN 5925-01-522-7133
NSN 7035-01-313-6973
NSN 6645-01-348-1120
NSN 6135-00-613-1068
NSN 6620-01-033-6852
NSN 6610-00-137-6532