NAS-624 THRU 644 Complete Document History
Bolt, Tension, Alloy Steel, Twelve Point, External Wrenching, 180 Ksi Ftu

Complete Current Edition:
   REVISION 9 - BOLT, TENSION, ALLOY STEEL, TWELVE POINT, EXTERNAL WRENCHING - Oct. 31, 2012

Obsolete Revision Information:
   REVISION 8 - BOLT, TENSION, ALLOY STEEL, TWELVE POINT, EXTERNAL WRENCHING - Feb. 28, 2010
   REVISION 7 - BOLT - TWELVE POINT - STEEL EX - Feb. 5, 2001
   REVISION 6 - BOLT - TWELVE POINT - STEEL EX - Feb. 28, 2000
   REVISION 5 - BOLT - TWELVE POINT - STEEL EX - Sept. 9, 1999
   DOD ADOPTION - FYI ONLY: DOD ADOPTED - Sept. 13, 1995
   REVISION 4 R89 - REAFFIRMED IN 1989 - March 15, 1969