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National Stock Number:
5305-00-113-8480
Federal Supply Class:
5305
National Item Identification Number:
001138480
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:
| 5522-160 | 11871 | RECON/OPTICAL, INC. | | 5522-160 | 80294 | BOURNS INSTRUMENTS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.437 INCHES MINIMUM AND | | 0.495 INCHES MAXIMUM | | FASTENER LENGTH | 1.234 INCHES MINIMUM AND | | 1.266 INCHES MAXIMUM | | MATERIAL | STEEL COMP 1010 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | FILLISTER | | HEAD DIAMETER | 0.389 INCHES MINIMUM AND | | 0.414 INCHES MAXIMUM | | HEAD HEIGHT | 0.155 INCHES MINIMUM AND | | 0.170 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | SLOT | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 2 | | FIRST DIAMETER FROM HEAD | 0.243 INCHES MINIMUM AND | | 0.249 INCHES MAXIMUM | | SECOND DIAMETER FROM HEAD | 0.200 INCHES MINIMUM AND | | 0.210 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.109 INCHES MINIMUM AND | | 0.141 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.765 INCHES MINIMUM AND | | 0.797 INCHES MAXIMUM | | SPECIAL FEATURES | FIRST DIA THD | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 11871 | | DESIGN CONTROL REFERENCE | 5522-160 |
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