Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SSI-3315L-6423 found under Coat Mans Pajama by Sewing Source Inc The. The National Stock Number assigned to this part is 6532014381335, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SSI-3315L-6423.