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National Stock Number: 5305-01-041-3847
Federal Supply Class: 5305
National Item Identification Number: 010413847
Description: SCREW,SHOULDER
Detail: An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 IN.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below No. 10 (0.190 IN.) (5 mm) nominal diameter. No. 10 (0.190 IN.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use SCREW, EXTERNALLY RELIEVED BODY. For items with a No. 10 (0.190 IN.) (5 mm) or larger thread diameter without an inserted driver head, use BOLT, SHOULDER. Excludes BOLT, INTERNAL WRENCHING and SCREW, CAP, SOCKET HEAD.
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Manufacturer Information:
0149-1-2027 | 15942 | USACECOM INTELLIGENCE ELECTRONIC WARFARE SENSORS DIRECTORATE |
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Techincal Specification:
FASTENER LENGTH | 0.224 INCHES NOMINAL | HEAD DIAMETER | 0.188 INCHES NOMINAL | HEAD HEIGHT | 0.062 INCHES NOMINAL | HEAD STYLE | FLAT CHAMFER | INTERNAL DRIVE STYLE | HEXAGON | MATERIAL | STEEL COMP 303 OVERALL | NOMINAL THREAD DIAMETER | 0.112 INCHES | NONSTANDARD THREAD PITCH DIAMETER | +0.0925 TO 0.0950 INCHES | SHOULDER SHAPE | ROUND FIRST SHOULDER | SHOULDER LENGTH | 0.050 INCHES NOMINAL FIRST SHOULDER | WIDTH ACROSS FLATS | 0.078 INCHES NOMINAL | THREAD LENGTH | 0.144 INCHES NOMINAL | THREAD CLASS | 2A | THREAD DIRECTION | RIGHT-HAND | THREAD SERIES DESIGNATOR | UNC | THREAD QUANTITY PER INCH | 40 |
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