Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R-12152 ITEM 19 found under Ring Retaining by New England Trawler Equipment Co. The National Stock Number assigned to this part is 5325013291956, and the Federal Supply Class is 5325 Fastening Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like R-12152 ITEM 19.