1560-01-388-2047 FAIRING,AIRCRAFT Index 5340-01-388-2049 BRACKET,MOUNTING

National Stock Number:
5305-01-388-2048

Federal Supply Class:
5305

National Item Identification Number:
013882048

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:
370215-53B150RAYTHEON COMPANY
370215-549956RAYTHEON COMPANY
370215-554X10RAYTHEON COMPANY


Techincal Specification:
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FASTENER LENGTH0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM
HEAD DIAMETER0.205 INCHES MINIMUM AND 0.219 INCHES MAXIMUM
HEAD HEIGHT0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM
HEAD STYLEPAN
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
MATERIALSTEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER0.112 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM
THREAD QUANTITY PER INCH40
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)


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