5310-00-251-0800 WASHER,FLAT Index 5310-00-251-0806 WASHER,FLAT

National Stock Number:
5305-00-251-0804

Federal Supply Class:
5305

National Item Identification Number:
002510804

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:
290-035-500512360ALBANY FASTENERS PAWTUCKET FASTENERS DIV
290-035-500595542NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER0.138 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.270 INCHES MINIMUM AND
0.290 INCHES MAXIMUM
FASTENER LENGTH0.677 INCHES MINIMUM AND
0.707 INCHES MAXIMUM
MATERIALSTEEL COMP 303 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLEPAN
HEAD DIAMETER0.256 INCHES MINIMUM AND
0.270 INCHES MAXIMUM
HEAD HEIGHT0.087 INCHES MINIMUM AND
0.097 INCHES MAXIMUM
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.090 INCHES MINIMUM AND
0.100 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.387 INCHES MINIMUM AND
0.437 INCHES MAXIMUM
THE MANUFACTURERS DATA
MANUFACTURERS CODE95542
DESIGN CONTROL REFERENCE290-035-5005


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