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National Stock Number:
5305-01-045-6549
Federal Supply Class:
5305
National Item Identification Number:
010456549
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:
| 0N174089 | 98230 | NATIONAL SECURITY AGENCY | | 6103-B-0440-4 | 06540 | NEW HAVEN MFG CORP AMATOM ELECTRONIC HARDWARE DIV | | 6103-B-0440-4 | 1YGB8 | CAREY MANUFACTURING CO, INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.112 INCHES | | THREAD QUANTITY PER INCH | 40 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.115 INCHES MINIMUM AND | | 0.125 INCHES MAXIMUM | | FASTENER LENGTH | 0.560 INCHES NOMINAL | | MATERIAL | COPPER ALLOY 360 OVERALL | | SURFACE TREATMENT | NICKEL OVERALL | | HEAD STYLE | KNURLED NO. 4 | | HEAD DIAMETER | 0.307 INCHES MINIMUM AND | | 0.317 INCHES MAXIMUM | | HEAD HEIGHT | 0.290 INCHES MINIMUM AND | | 0.330 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | SLOT | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FIRST DIAMETER FROM HEAD | 0.073 INCHES MINIMUM AND | | 0.083 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.349 INCHES MINIMUM AND | | 0.369 INCHES MAXIMUM |
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