NSN 5305-00-157-8307

Part Details | EXTERNALLY RELIEVED BODY SCREW

5305-00-157-8307 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: SMB5286277, SMB528627-7, 5305-00-157-8307, 00-157-8307, 5305001578307, 001578307

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAY 17, 197100-157-830701852 ( SCREW, EXTERNALLY RELIEVED BODY )
REFERENCE DRAWINGS & PICTURES

HEXAGON

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-00-157-8307
Part Number Cage Code Manufacturer
SMB528627-780063US ARMY COMMUNICATIONS &ELECTRONICS MATERIEL READINESS
Technical Data | NSN 5305-00-157-8307
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.164 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.350 INCHES MINIMUM
FASTENER LENGTH1.380 INCHES MINIMUM AND 1.400 INCHES MAXIMUM
HEAD STYLE HEXAGON
HEAD HEIGHT0.160 INCHES NOMINAL
WIDTH BETWEEN FLATS0.312 INCHES NOMINAL
INTERNAL DRIVE STYLE4 CROSS RECESS TYPE 1
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.950 INCHES NOMINAL
SPECIAL FEATURESCONE POINT 90 DEG OF ANGLE