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National Stock Number:
5305-01-181-7465
Federal Supply Class:
5305
National Item Identification Number:
011817465
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:
| 6116886-4 | 03640 | LOCKHEED MARTIN CORPORATION | | CA13026-7 | 29372 | HOWMET GLOBAL FASTENING SYSTEMS INC. |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.138 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.156 INCHES NOMINAL | | FASTENER LENGTH | 0.451 INCHES MINIMUM AND | | 0.466 INCHES MAXIMUM | | MATERIAL | STEEL COMP 302 OR | | STEEL COMP 302B OR | | STEEL COMP 303 OR | | STEEL COMP 303 PLUS X OR | | STEEL COMP 303SE OR | | STEEL COMP 303CU OR | | STEEL COMP 303MA OR | | STEEL COMP 304 OR | | STEEL COMP 304L OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | FLAT COUNTERSUNK | | HEAD DIAMETER | 0.238 INCHES MINIMUM AND | | 0.279 INCHES MAXIMUM | | COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FIRST DIAMETER FROM HEAD | 0.105 INCHES MINIMUM AND | | 0.110 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.194 INCHES NOMINAL | | SPECIAL FEATURES | QUAD LEAD THREAD |
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