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National Stock Number:
5306-00-550-3020
Federal Supply Class:
5306
National Item Identification Number:
005503020
Description:
BOLT,INTERNAL WRENCHING
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No. 10 (0.190 IN.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also SCREW, CAP, SOCKET HEAD. Excludes SETSCREW; SCREW, SHOULDER; BOLT, SHOULDER; SCREW, EXTERNALLY RELIEVED BODY; BOLT, EXTERNALLY RELIEVED BODY; and SCREW, MACHINE.
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Techincal Specification:
| FASTENER LENGTH | 0.178 INCHES MINIMUM AND 0.208 INCHES MAXIMUM | | HARDNESS RATING | 39.0 ROCKWELL C NOMINAL OVERALL | | HEAD DIAMETER | 0.153 INCHES MINIMUM AND 0.157 INCHES MAXIMUM | | HEAD HEIGHT | 0.096 INCHES MINIMUM AND 0.099 INCHES MAXIMUM | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | SIX SPLINE | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 176000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.099 INCHES | | SPLINE WIDTH | 0.021 INCHES MINIMUM AND 0.022 INCHES MAXIMUM | | SPLINE MAJOR DIAMETER | 0.097 INCHES MINIMUM AND 0.098 INCHES MAXIMUM | | SPLINE MINOR DIAMETER | 0.080 INCHES MINIMUM AND 0.082 INCHES MAXIMUM | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.178 INCHES MINIMUM AND 0.208 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 48 | | THREAD SERIES DESIGNATOR | UNC |
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