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 5950-01-552-9485
NSN 7035-01-391-3518
NSN 5855-00-482-9876
NSN 5985-00-570-6041
NSN 5905-01-354-6569
NSN 6240-00-836-4980
NSN 6150-01-387-1084
NSN 5925-00-539-8372
NSN 6620-00-399-0087
NSN 6220-00-396-0039
NSN 5965-00-866-3371
NSN 6240-01-633-9357