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National Stock Number:
5305-01-462-0029
Federal Supply Class:
5305
National Item Identification Number:
014620029
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.
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Manufacturer Information:
| 75A123165-2003 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.625 INCHES | | THREAD QUANTITY PER INCH | 18 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.975 INCHES NOMINAL | | FASTENER LENGTH | 2.050 INCHES NOMINAL | | MATERIAL | STEEL COMP 431 OVERALL | | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT | | HEAD DIAMETER | 1.160 INCHES MINIMUM AND | | 1.170 INCHES MAXIMUM | | HEAD HEIGHT | 0.150 INCHES NOMINAL | | COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 2 |
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