MS51971D, MILITARY SPECIFICATION SHEET: NUT, PLAIN, HEXAGON-STEEL, CORROSION RESISTING, 300 SERIES, PASSIVATED, UNC-2B (19-SEP-2011)

MS51971D, MILITARY SPECIFICATION SHEET: NUT, PLAIN, HEXAGON-STEEL, CORROSION RESISTING, 300 SERIES, PASSIVATED, UNC-2B (19-SEP-2011)., Reactivated after 11 JULY 2007 and may be used for new and existing designs and acquisitions. This specification sheet is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product described herein shall consist of this specification sheet and FF-N-836.