Product Details | MACHINE BOLT

5306-01-157-8345 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.

Part Alternates: B490255, 5306-01-157-8345, 01-157-8345, 5306011578345, 011578345

Hardware and Abrasives | Bolts

Supply Group (FSG) NSN Assign. NIIN
53 13-JUL-83 01-157-8345

Drawings & Photos | NSN 5306-01-157-8345


Cross Reference | NSN 5306-01-157-8345

Part Number Cage Code Manufacturer
B490255 K0378 ROLLS-ROYCE MILITARY AERO ENGINES LTD
MS9501-09 96906 MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS

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Technical Data | NSN 5306-01-157-8345

Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER 0.250 INCHES
THREAD QUANTITY PER INCH 28
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.621 INCHES NOMINAL
FASTENER LENGTH 0.710 INCHES NOMINAL
MATERIAL STEEL CORROSION RESISTING OVERALL
HEAD STYLE C1 HEXAGON
HEAD HEIGHT 0.156 INCHES NOMINAL
WIDTH BETWEEN FLATS 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
MANUFACTURERS CODE K0378
DESIGN CONTROL REFERENCE B490255

Restrictions/Controls & Freight Information | NSN 5306-01-157-8345

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:BMunitions List Item - Mutilation (MUT) to the point of scrap required. (Formerly: Demilitarization not required. Trade Security Controls (TSCs) required at disposition.)
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
No Freight Information