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National Stock Number:
5305-01-166-5955
Federal Supply Class:
5305
National Item Identification Number:
011665955
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:
| 12321624 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | P14-2854 | 18265 | DONALDSON COMPANY, INC. |
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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 | 0.500 INCHES NOMINAL | | FASTENER LENGTH | 1.620 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | SURFACE TREATMENT | CADMIUM OR | | ZINC OVERALL | | HEAD STYLE | FLAT CHAMFER | | HEAD DIAMETER | 0.620 INCHES NOMINAL | | HEAD HEIGHT | 0.150 INCHES NOMINAL | | INTERNAL DRIVE STYLE | SLOT | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 4 | | FIRST DIAMETER FROM HEAD | 0.440 INCHES NOMINAL | | SECOND DIAMETER FROM HEAD | 0.320 INCHES NOMINAL | | THIRD DIAMETER FROM HEAD | 0.375 INCHES NOMINAL | | FOURTH DIAMETER FROM HEAD | 0.190 INCHES NOMINAL | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.060 INCHES NOMINAL | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.430 INCHES NOMINAL | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 0.740 INCHES NOMINAL | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER | 0.970 INCHES NOMINAL | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 19207 | | MFR SOURCE CONTROLLING REFERENCE | 12321624 |
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