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National Stock Number:
5305-00-471-3642
Federal Supply Class:
5305
National Item Identification Number:
004713642
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:
| 218-22418-1 | 80378 | TRIUMPH AEROSTRUCTURES, LLC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.387 INCHES MAXIMUM | | FASTENER LENGTH | 0.500 INCHES NOMINAL | | MATERIAL | STEEL COMP 4340 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | CVA1-585,COND C1 FSCM 80378 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | HEAD STYLE | BEVEL-CONICAL | | HEAD DIAMETER | 0.310 INCHES NOMINAL | | HEAD HEIGHT | 0.250 INCHES NOMINAL | | INTERNAL DRIVE STYLE | SLOT | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 2 | | FIRST DIAMETER FROM HEAD | 0.200 INCHES NOMINAL | | SECOND DIAMETER FROM HEAD | 0.247 INCHES MINIMUM AND | | 0.249 INCHES MAXIMUM | | THIRD DIAMETER FROM HEAD | 0.141 INCHES MINIMUM AND | | 0.146 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.050 INCHES NOMINAL | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.100 INCHES MINIMUM AND | | 0.105 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 0.180 INCHES MINIMUM AND | | 0.185 INCHES MAXIMUM | | SPECIAL FEATURES | PELLET TYPE INSERT LOCKING ELEMENT PER NAS1283 TYPE N | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 80378 | | DESIGN CONTROL REFERENCE | 218-22418-1 |
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