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National Stock Number: 5305-00-454-9111
Federal Supply Class: 5305
National Item Identification Number: 004549111
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:
2171852 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | 2171852 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH |
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Techincal Specification:
THREAD SERIES DESIGNATOR | UNF | NOMINAL THREAD DIAMETER | 0.250 INCHES | THREAD QUANTITY PER INCH | 28 | THREAD CLASS | 2A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.360 INCHES MINIMUM | FASTENER LENGTH | 0.485 INCHES MINIMUM AND | | 0.495 INCHES MAXIMUM | MATERIAL | STEEL OVERALL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | HEAD STYLE | FLAT CHAMFER | HEAD DIAMETER | 0.365 INCHES MINIMUM AND | | 0.375 INCHES MAXIMUM | HEAD HEIGHT | 0.120 INCHES MINIMUM AND | | 0.130 INCHES MAXIMUM | INTERNAL DRIVE STYLE | HEXAGON | WIDTH ACROSS FLATS | 0.190 INCHES NOMINAL | SHOULDER SHAPE | ROUND FIRST SHOULDER | SHOULDER DIAMETER | 0.290 INCHES MINIMUM AND | | 0.310 INCHES MAXIMUM FIRST SHOULDER | SHOULDER LENGTH | 0.125 INCHES MINIMUM AND | | 0.135 INCHES MAXIMUM FIRST SHOULDER | THE MANUFACTURERS DATA | | MANUFACTURERS CODE | 10001 | DESIGN CONTROL REFERENCE | 2171852 |
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