NSN 5305-01-170-6131

Part Details | EXTERNALLY RELIEVED BODY SCREW

5305-01-170-6131 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 undercut for thread relief). It is No. 0 (0.060 IN.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below No. 10 (0.190 IN.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also BOLT, EXTERNALLY RELIEVED BODY and BOLT, INTERNAL WRENCHING.

Alternate Parts: 155B77662, 155B7766-2, 114D23638, 114D2363-8, 5305-01-170-6131, 01-170-6131, 5305011706131, 011706131

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 27, 198401-170-613101852 ( SCREW, EXTERNALLY RELIEVED BODY )
REFERENCE DRAWINGS & PICTURES

HEXAGON

CROSS RECESS TYPE II

Cross Reference | NSN 5305-01-170-6131
Part Number Cage Code Manufacturer
155B7766-204241BECHTEL MARINE PROPULSIONCORPORATION
114D2363-804241BECHTEL MARINE PROPULSIONCORPORATION
Technical Data | NSN 5305-01-170-6131
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER1.000 INCHES
THREAD QUANTITY PER INCH8
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM
FASTENER LENGTH5.470 INCHES MINIMUM AND 5.530 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH100000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH80000 POUNDS PER SQUARE INCH
HEAD STYLE HEXAGON
INTERNAL DRIVE STYLE1 CROSS RECESS TYPE II
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.803 INCHES MINIMUM AND 0.819 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER3.500 INCHES NOMINAL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
CRITICALITY CODE JUSTIFICATIONZZZY