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National Stock Number:
5305-00-145-0863
Federal Supply Class:
5305
National Item Identification Number:
001450863
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:
| 8528979 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.198 INCHES MINIMUM AND | | 0.224 INCHES MAXIMUM | | FASTENER LENGTH | 0.359 INCHES MINIMUM AND | | 0.375 INCHES MAXIMUM | | MATERIAL | STEEL COMP 4130 OR | | STEEL COMP 8630 OR | | STEEL COMP 8735 OR | | STEEL COMP 8740 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR | | MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE OR | | MIL-S-6098 MIL SPEC 3RD MATERIAL RESPONSE OR | | MIL-S-6049 MIL SPEC 4TH MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH | | HEAD STYLE | FILLISTER | | HEAD DIAMETER | 0.292 INCHES MINIMUM AND | | 0.313 INCHES MAXIMUM | | HEAD HEIGHT | 0.118 INCHES MINIMUM AND | | 0.130 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | SLOT | | HOLE CONFIGURATION STYLE | ROUND | | HOLE TYPE | DRILLED | | HOLE QUANTITY | 1 | | HOLE DIAMETER | 0.046 INCHES NOMINAL | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FIRST DIAMETER FROM HEAD | 0.137 INCHES MINIMUM AND | | 0.139 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.151 INCHES MINIMUM AND | | 0.161 INCHES MAXIMUM |
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