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National Stock Number:
5305-01-381-2108
Federal Supply Class:
5305
National Item Identification Number:
013812108
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:
| H33-4021-50 | 71492 | MARCONI COMMUNICATIONS INC | | H33-4021-50 | U2248 | SELEX ELSAG LTD |
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Techincal Specification:
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 20.0 MILLIMETERS NOMINAL | | EXTERNAL THREAD TOLERANCE CLASS | 6G | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FASTENER LENGTH | 32.0 MILLIMETERS NOMINAL | | FIRST DIAMETER FROM HEAD | 4.5 MILLIMETERS NOMINAL | | HEAD DIAMETER | 9.0 MILLIMETERS NOMINAL | | HEAD HEIGHT | 75.0 MILLIMETERS NOMINAL | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | SLOT | | MATERIAL DOCUMENT AND CLASSIFICATION | M-110/580/10BS970ENIA, CAGE U2248 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 6.0 MILLIMETERS | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 12.0 MILLIMETERS NOMINAL | | THREAD PITCH IN MILLIMETERS | 1.0 | | THREAD SERIES DESIGNATOR | M |
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