NSN 5306-01-317-0422

Part Details | EXTERNALLY RELIEVED BODY BOLT

5306-01-317-0422 An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercuts for thread relief). It is No. 10 (0.190 IN.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, INTERNAL WRENCHING and THUMBSCREW. See also SCREW, EXTERNALLY RELIEVED BODY.

Alternate Parts: A3042140, 5306-01-317-0422, 01-317-0422, 5306013170422, 013170422

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAR 22, 199001-317-042206675 ( BOLT, EXTERNALLY RELIEVED BODY )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK UNDERCUT

Cross Reference | NSN 5306-01-317-0422
Part Number Cage Code Manufacturer
A304214080063US ARMY COMMUNICATIONS &ELECTRONICS MATERIEL READINESS
Technical Data | NSN 5306-01-317-0422
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.630 INCHES NOMINAL
FASTENER LENGTH1.880 INCHES NOMINAL
HEAD STYLE9 HEXAGON COUNTERSUNK UNDERCUT
HEAD DIAMETER0.750 INCHES NOMINAL
HEAD HEIGHT0.380 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
SECOND DIAMETER FROM HEAD0.190 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.880 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER1.250 INCHES NOMINAL