Item must comply with requirements of defense supply center columbus production standard no. Lo1522
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 7035-01-422-6850
NSN 6610-01-278-9387
NSN 5996-00-080-6847
NSN 5960-00-579-0298
NSN 5985-01-202-9274
NSN 5905-01-576-2338
NSN 6220-01-472-3785
NSN 5925-01-534-9013
NSN 5925-01-361-4275
NSN 4140-01-546-9695
NSN 5990-01-254-3197
NSN 5960-00-951-1777