NSN 5305-00-758-1178

Part Details | EXTERNALLY RELIEVED BODY SCREW

5305-00-758-1178 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: CA110073, CA11007-3, 666092343, 666092-343, D792104, 755002A76433, 755002A7643-3, SMB500211, SMC500791 PC2, SM-C-500791 PC2, 5305-00-758-1178, 00-758-1178, 5305007581178, 007581178

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 01, 196000-758-117801852 ( SCREW, EXTERNALLY RELIEVED BODY )
REFERENCE DRAWINGS & PICTURES

DISHED HEXAGON

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-00-758-1178
Part Number Cage Code Manufacturer
CA11007-329372ARCONIC GLOBAL FASTENERS & RINGS,INC.
666092-34312436BAE SYSTEMS INFORMATION ANDELECTRONIC SYSTEMS INTEGRATION INC.
D79210417446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
755002A7643-387990QUARTERMASTER GENERAL
SMB50021180063US ARMY COMMUNICATIONS &ELECTRONICS MATERIEL READINESS
SM-C-500791 PC280063US ARMY COMMUNICATIONS &ELECTRONICS MATERIEL READINESS
Technical Data | NSN 5305-00-758-1178
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.164 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM
FASTENER LENGTH0.651 INCHES MINIMUM AND 0.661 INCHES MAXIMUM
HEAD STYLE2 DISHED HEXAGON
HEAD DIAMETER0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM
HEAD HEIGHT0.090 INCHES MINIMUM AND 0.130 INCHES MAXIMUM
INTERNAL DRIVE STYLE CROSS RECESS TYPE 1
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.114 INCHES MINIMUM AND 0.119 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.401 INCHES MINIMUM AND 0.411 INCHES MAXIMUM