NSN 5305-01-055-6212

Part Details | EXTERNALLY RELIEVED BODY SCREW

5305-01-055-6212 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: 0N199172, 5305-01-055-6212, 01-055-6212, 5305010556212, 010556212

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53FEB 09, 197801-055-621201852 ( SCREW, EXTERNALLY RELIEVED BODY )
REFERENCE DRAWINGS & PICTURES

UNDERCUT HEXAGON

Cross Reference | NSN 5305-01-055-6212
Part Number Cage Code Manufacturer
0N19917298230NATIONAL SECURITY AGENCY
Technical Data | NSN 5305-01-055-6212
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.190 INCHES NOMINAL
FASTENER LENGTH0.530 INCHES NOMINAL
HEAD STYLE5 UNDERCUT HEXAGON
HEAD DIAMETER0.219 INCHES NOMINAL
HEAD HEIGHT0.085 INCHES NOMINAL
DISTANCE FROM CENTERLINE TO FLAT0.015 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.085 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.250 INCHES NOMINAL
SPECIAL FEATURESKY-57,5810-01-157-2279
END ITEM IDENTIFICATIONKY-57,5810-00-434-3644