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National Stock Number:
5305-01-603-9143
Federal Supply Class:
5305
National Item Identification Number:
016039143
Description:
SCREW,MACHINE
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal 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. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.
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Manufacturer Information:
| 4028679 | 45152 | OSHKOSH CORP | | 4028679 | 75Q65 | OSHKOSH DEFENSE LLC |
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Techincal Specification:
| COLOR | BLACK | | EXTENDED WASHER DIAMETER | 0.686 INCHES MINIMUM AND 0.706 INCHES MAXIMUM | | FASTENER LENGTH | 2.50 INCHES NOMINAL | | HEAD HEIGHT | 0.274 INCHES MINIMUM AND 0.298 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE | | III PART NAME ASSIGNED BY CONTROLLING AGENCY | SCR, WLK, HEX .31-18X2.50 NS MB | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL THREAD DIAMETER | 0.31 INCHES | | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | SAE J429 ASSN STD SINGLE MATERIAL RESPONSE | | SCREW MATERIAL | STEEL | | SPECIAL FEATURES | FINISH:D60 TYPE 1 PER FM100 (MAGNIBLACK 575) | | WIDTH BETWEEN FLATS | 0.491 INCHES MINIMUM AND 0.500 INCHES MAXIMUM | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 2.50 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 18 | | THREAD SERIES DESIGNATOR | UNC |
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