Product Details | MACHINE BOLT

5306-00-377-4309 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: ST2094028, ST2094-028, 5306-00-377-4309, 00-377-4309, 5306003774309, 003774309

Hardware and Abrasives | Bolts

Supply Group (FSG) NSN Assign. NIIN
53 16 MAR 1974 00-377-4309

Drawings & Photos | NSN 5306-00-377-4309


Cross Reference | NSN 5306-00-377-4309

Part Number Cage Code Manufacturer
ST2094-028 77445 UNITED TECHNOLOGIES CORPORATION DBA PRATT WHITNEY-SPARE PARTS

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Technical Data | NSN 5306-00-377-4309

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 0.740 INCHES MINIMUM AND 0.860 INCHES MAXIMUM
FASTENER LENGTH 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM
MATERIAL IRON ALLOY 660 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING 24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH 130000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH 85000 POUNDS PER SQUARE INCH
HEAD STYLE C10 DOUBLE HEXAGON WITH HOLE
HEAD HEIGHT 0.293 INCHES MINIMUM AND 0.313 INCHES MAXIMUM
WIDTH BETWEEN FLATS 0.313 INCHES NOMINAL
EXTENDED WASHER DIAMETER 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM
EXTENDED WASHER THICKNESS 0.060 INCHES MINIMUM
GRIP LENGTH 0.025 INCHES MINIMUM AND 0.125 INCHES MAXIMUM
FEATURES PROVIDED FINISHED HEAD
MANUFACTURERS CODE 77445
DESIGN CONTROL REFERENCE ST2094-028

Restrictions/Controls & Freight Information | NSN 5306-00-377-4309

Category Code Description
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:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information