5310-00-131-2898 WASHER,FLAT Index 4310-00-131-2901 RING,PISTON

National Stock Number:
5305-00-131-2899

Federal Supply Class:
5305

National Item Identification Number:
001312899

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:
290-035-50010V3H9TOTAL FASTENERS INC
290-035-500112360ALBANY FASTENERS PAWTUCKET FASTENERS DIV
290-035-500195542NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.387 INCHES MINIMUM AND 0.437 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FASTENER LENGTH0.615 INCHES MINIMUM AND 0.645 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD0.090 INCHES MINIMUM AND 0.100 INCHES MAXIMUM
HEAD DIAMETER0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
HEAD HEIGHT0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM
HEAD STYLEPAN
INTERNAL DRIVE STYLECROSS RECESS TYPE II
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OVERALL
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.138 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.208 INCHES MINIMUM AND 0.228 INCHES MAXIMUM
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNC


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