NSN 5305-00-529-9899

Part Details | EXTERNALLY RELIEVED BODY SCREW

5305-00-529-9899 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: 232511000, 232511-000, 5305-00-529-9899, 00-529-9899, 5305005299899, 005299899

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53SEP 07, 197400-529-989901852 ( SCREW, EXTERNALLY RELIEVED BODY )
REFERENCE DRAWINGS & PICTURES

DISHED HEXAGON

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-00-529-9899
Part Number Cage Code Manufacturer
232511-00081413BAE SYSTEMS INFORMATION ANDELECTRONIC SYSTEMS INTEGRATION I
Technical Data | NSN 5305-00-529-9899
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.325 INCHES MINIMUM AND 0.416 INCHES MAXIMUM
FASTENER LENGTH1.083 INCHES MINIMUM AND 1.103 INCHES MAXIMUM
HEAD STYLE2 DISHED HEXAGON
HEAD DIAMETER0.475 INCHES MINIMUM AND 0.495 INCHES MAXIMUM
HEAD HEIGHT0.165 INCHES MINIMUM AND 0.185 INCHES MAXIMUM
INTERNAL DRIVE STYLE CROSS RECESS TYPE 1
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.225 INCHES MINIMUM AND 0.245 INCHES MAXIMUM
SECOND DIAMETER FROM HEAD0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.083 INCHES MINIMUM AND 0.103 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER0.594 INCHES NOMINAL