1730-01-452-7239 MAINTENANCE PLATFORM,AIRCRAFT Index 3120-01-452-7241 BUSHING,SLEEVE

National Stock Number:
5305-01-452-7240

Federal Supply Class:
5305

National Item Identification Number:
014527240

Description:
SCREW,EXTERNALLY RELIEVED BODY

Detail:
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.


Manufacturer Information:
161600-000106481NORTHROP GRUMMAN SYSTEMS CORPORATION
6234-SS-063206515COMO INDUSTRIES INC
783-50-SS-1251506ACCURATE SCREW MACHINE CORP


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.295 INCHES MINIMUM AND 0.325 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FASTENER LENGTH0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM
FEATURES PROVIDEDDRY FILM LUBRICANT
FIRST DIAMETER FROM HEAD0.090 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
HEAD DIAMETER0.208 INCHES MINIMUM AND 0.226 INCHES MAXIMUM
HEAD HEIGHT0.111 INCHES MINIMUM AND 0.132 INCHES MAXIMUM
HEAD STYLEPAN
INTERNAL DRIVE STYLESLOT
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-W-52263C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER0.138 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCYSCREW,CAPTIVE
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.190 INCHES NOMINAL
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNC


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