NSN 5305-01-142-9353

Part Details | EXTERNALLY RELIEVED BODY SCREW

5305-01-142-9353 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: FFS92, FF-S-92, MS5189624, MS51896-24, MS5189624, MS51896-24, 5305-01-142-9353, 01-142-9353, 5305011429353, 011429353

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53NOV 23, 198201-142-935301852 ( SCREW, EXTERNALLY RELIEVED BODY )
REFERENCE DRAWINGS & PICTURES

DISHED HEXAGON

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-01-142-9353
Part Number Cage Code Manufacturer
FF-S-9281348FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES
MS51896-2496906MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS
MS51896-2480205NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES
Technical Data | NSN 5305-01-142-9353
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.417 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
FASTENER LENGTH0.719 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH
HEAD STYLE2 DISHED HEXAGON
HEAD DIAMETER0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM
HEAD HEIGHT0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM
INTERNAL DRIVE STYLE CROSS RECESS TYPE 1
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.175 INCHES MINIMUM AND 0.185 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.281 INCHES MINIMUM AND 0.333 INCHES MAXIMUM
NONDEFINITIVE SPEC/STD DATA3 TYPE AND 9C STYLE