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National Stock Number:
5305-01-414-4168
Federal Supply Class:
5305
National Item Identification Number:
014144168
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:
| 2612895-201 | 06424 | ALLIANT TECHSYSTEMS OPERATIONS LLC | | 6199-SS-2520 | 06540 | NEW HAVEN MFG CORP AMATOM ELECTRONIC HARDWARE DIV | | 6199-SS-2520-7 | 06540 | NEW HAVEN MFG CORP AMATOM ELECTRONIC HARDWARE DIV | | 6199-SS-2520-7 | 1YGB8 | CAREY MANUFACTURING CO, INC | | 6199-SS-2520 | 1YGB8 | CAREY MANUFACTURING CO, INC |
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Techincal Specification:
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FASTENER LENGTH | 0.922 INCHES MINIMUM AND 0.952 INCHES MAXIMUM | | FIRST DIAMETER FROM HEAD | 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM | | HEAD DIAMETER | 0.730 INCHES MINIMUM AND 0.770 INCHES MAXIMUM | | HEAD HEIGHT | 0.370 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 2 | | INTERNAL DRIVE STYLE | SLOT | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-W-52263 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | POINT STYLE | CONE | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.360 INCHES MINIMUM AND 0.400 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
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