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National Stock Number:
5305-01-381-0666
Federal Supply Class:
5305
National Item Identification Number:
013810666
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:
| A320C032-101 | 0D0D0 | BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. | | A320C032-101 | 88818 | KEARFOTT CORPORATION |
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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 | 0.460 INCHES NOMINAL | | FASTENER LENGTH | 1.500 INCHES NOMINAL | | MATERIAL | STEEL COMP 630 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643 COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | HEXAGON EXTENDED WASHER | | HEAD HEIGHT | 0.150 INCHES MINIMUM AND | | 0.160 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.427 INCHES MINIMUM AND | | 0.439 INCHES MAXIMUM | | EXTENDED WASHER DIAMETER | 0.400 INCHES NOMINAL | | EXTENDED WASHER THICKNESS | 0.020 INCHES MINIMUM AND | | 0.030 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FIRST DIAMETER FROM HEAD | 0.198 INCHES MINIMUM AND | | 0.200 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.925 INCHES NOMINAL |
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