4820-01-387-9113 VALVE,SAFETY RELIEF Index 7310-01-387-9115 RANGE,GAS

National Stock Number:
5306-01-387-9114

Federal Supply Class:
5306

National Item Identification Number:
013879114

Description:
BOLT,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 undercuts for thread relief). It is No. 10 (0.190 IN.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, INTERNAL WRENCHING and THUMBSCREW. See also SCREW, EXTERNALLY RELIEVED BODY.


Manufacturer Information:
657928915090RAYTHEON COMPANY
657928953711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.560 INCHES NOMINAL
FASTENER LENGTH1.500 INCHES NOMINAL
MATERIALSTEEL CORROSION RESISTING OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLEHEXAGON
HEAD HEIGHT0.211 INCHES NOMINAL
WIDTH BETWEEN FLATS0.500 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.255 INCHES MINIMUM AND
0.265 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.935 INCHES NOMINAL


Click here to Register for Free 30-day Trial