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National Stock Number:
5305-01-192-2208
Federal Supply Class:
5305
National Item Identification Number:
011922208
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:
| 946J921PC5 | 94259 | BECHTEL MARINE PROPULSION CORPORATION | | MS16995-112(MOD) | 94259 | BECHTEL MARINE PROPULSION CORPORATION |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.625 INCHES | | THREAD QUANTITY PER INCH | 11 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.490 INCHES MINIMUM AND | | 0.510 INCHES MAXIMUM | | FASTENER LENGTH | 1.240 INCHES MINIMUM AND | | 1.250 INCHES MAXIMUM | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | HEAD STYLE | FLAT CHAMFER | | HEAD DIAMETER | 0.940 INCHES NOMINAL | | HEAD HEIGHT | 0.630 INCHES NOMINAL | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.500 INCHES NOMINAL | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FIRST DIAMETER FROM HEAD | 0.460 INCHES MINIMUM AND | | 0.470 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.740 INCHES MINIMUM AND | | 0.750 INCHES MAXIMUM | | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUAILTY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS | | CRITICALITY CODE JUSTIFICATION | ZZZY | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 94259 | | DESIGN CONTROL REFERENCE | 946J921PC5 |
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