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National Stock Number:
5305-00-175-3754
Federal Supply Class:
5305
National Item Identification Number:
001753754
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:
| 14-27028-1 | 0JRC1 | NORTHROP GRUMMAN TECHNICAL SERVICES, INC. | | 14-27028-1 | 30205 | MERCER PRODUCTS & MANUFACTURING COMPANY | | 14-27028-1 | 52916 | CAPRICE ENGINEERING COMPANY, INC. | | 14-27028-1 | 66841 | PRECI-MANUFACTURING, INCORPORATED | | 14-27028-1 | 76823 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 14-27028-1 | 79U29 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 14-27028-1 | 2T918 | ALCO MACHINE CO INC |
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Techincal Specification:
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.650 INCHES NOMINAL FIRST HOLE | | FASTENER LENGTH | 1.765 INCHES MINIMUM AND 1.795 INCHES MAXIMUM | | HEAD DIAMETER | 0.885 INCHES NOMINAL | | HEAD HEIGHT | 0.100 INCHES NOMINAL | | INTERNAL DRIVE STYLE | HEXAGON | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SHANK UNTHREADED HOLE DIAMETER | 0.070 INCHES NOMINAL FIRST HOLE | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER LENGTH | 1.420 INCHES NOMINAL FIRST SHOULDER | | WIDTH ACROSS FLATS | 0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.750 INCHES NOMINAL | | THREAD CLASS | 3A | | THREAD LENGTH | 0.274 INCHES MINIMUM AND 0.375 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 28 | | THREAD SERIES DESIGNATOR | UNF |
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