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National Stock Number:
5305-00-833-5079
Federal Supply Class:
5305
National Item Identification Number:
008335079
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:
| 554A003687 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH | | A554-297 | 34228 | L3 TECHNOLOGIES, INC. | | A554-297 | 56878 | SPS TECHNOLOGIES, LLC | | A554-297RAPCALL | 34228 | L3 TECHNOLOGIES, INC. | | F554-451RAPC17 | 34228 | L3 TECHNOLOGIES, INC. |
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Techincal Specification:
| FASTENER LENGTH | 1.405 INCHES NOMINAL | | HEAD DIAMETER | 0.437 INCHES NOMINAL | | HEAD HEIGHT | 0.218 INCHES NOMINAL | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SHOULDER DIAMETER | 0.3095 INCHES MINIMUM AND 0.3105 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER LENGTH | 0.750 INCHES NOMINAL FIRST SHOULDER | | SPECIAL FEATURES | SOFT MATERIAL INSERTED IN THREADS FOR LOOKING FEATURE | | WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.437 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNC |
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