NSN 5930015931045, UCOM, INC. (CAGE 0ZSM8), PART NUMBER 05400 Please review the NSN listed above and provide any sources that may be able to manufacture this item. The only approved source for this it... NSN 5930015931045, UCOM, INC. (CAGE 0ZSM8), PART NUMBER 05400 Please review the NSN listed above and provide any sources that may be able to manufacture this item. The only approved source for this item is listed above. All information may be submitted directly to Sarah Schaff, Contract Specialist, at Sarah.Schaff@dla.mil. This information must be provided by the response date of this notice.