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National Stock Number:
5305-00-227-1488
Federal Supply Class:
5305
National Item Identification Number:
002271488
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:
| 8509450-3 | 11447 | L3 TECHNOLOGIES, INC. | | 8509450-3 | 49671 | LOCKHEED MARTIN CORP LOCKHEED MARTIN INFORMATION SYSTEMS AUTOMATED SPARES |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.164 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.250 INCHES MINIMUM | | FASTENER LENGTH | 0.730 INCHES MINIMUM AND | | 0.770 INCHES MAXIMUM | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | SURFACE TREATMENT | PASSIVATE AND | | PAINT OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-14072 E-300 MIL SPEC 1ST TREATMENT RESPONSE OVERALL | | HEAD STYLE | FLAT CHAMFER | | HEAD DIAMETER | 0.262 INCHES MINIMUM AND | | 0.270 INCHES MAXIMUM | | HEAD HEIGHT | 0.159 INCHES MINIMUM AND | | 0.164 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | SLOT | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FIRST DIAMETER FROM HEAD | 0.118 INCHES MINIMUM AND | | 0.128 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.480 INCHES MINIMUM AND | | 0.520 INCHES MAXIMUM | | SPECIAL FEATURES | COLOR RED EPOXY NO. 1985632-1 | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 49671 | | DESIGN CONTROL REFERENCE | 8509450-3 |
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