NSN 5306-00-021-4259

Part Details | MACHINE BOLT

5306-00-021-4259 An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.

Alternate Parts: 9408997, 214259, MILB45912, MIL-B-45912, MS35764520, MS35764-520, MS357641120, MS35764-1120, 214259, 5306-00-021-4259, 00-021-4259, 5306000214259, 000214259

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 01, 196300-021-425901847 ( BOLT, MACHINE )
REFERENCE DRAWINGS & PICTURES

UNDERCUT HEXAGON

Cross Reference | NSN 5306-00-021-4259
Part Number Cage Code Manufacturer
940899724617GENERAL MOTORS CORP
21425924617GENERAL MOTORS CORP
MIL-B-4591281349MILITARY SPECIFICATIONSPROMULGATED BY MILITARY
MS35764-52096906MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS
MS35764-112096906MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS
21425919207U S ARMY TANK AUTOMOTIVE COMMANDAMSTA-IM-MM
Technical Data | NSN 5306-00-021-4259
Characteristic Specifications
HEAD STYLE UNDERCUT HEXAGON
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.750 INCHES
THREAD QUANTITY PER INCH16
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH1.594 INCHES MINIMUM AND 1.750 INCHES MAXIMUM
FASTENER LENGTH1.670 INCHES MINIMUM AND 1.750 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH150000 POUNDS PER SQUARE INCH
HEAD HEIGHT0.438 INCHES MINIMUM AND 0.458 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.985 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
FEATURES PROVIDED FINISHED HEAD
SPECIFICATION/STANDARD DATA81349-MIL-B-45912 GOVERNMENT SPECIFICATION AND 96906-MS35764 REV D/INACIVE/ GOVERNMENT STANDARD
NONDEFINITIVE SPEC/STD DATAB COMPOSITION
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY OPTIONAL ZINC COATED SURF. TREAT.