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National Stock Number:
5305-00-239-8581
Federal Supply Class:
5305
National Item Identification Number:
002398581
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:
| 685706-1 | 3B150 | RAYTHEON COMPANY | | 685706-1 | 49956 | RAYTHEON COMPANY | | 685706-1 | 54X10 | RAYTHEON COMPANY |
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Techincal Specification:
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 0.095 INCHES MINIMUM AND 0.100 INCHES MAXIMUM FIRST HOLE | | FASTENER LENGTH | 1.312 INCHES NOMINAL | | HEAD DIAMETER | 0.562 INCHES NOMINAL | | HEAD HEIGHT | 0.190 INCHES NOMINAL | | HEAD STYLE | BINDING | | INTERNAL DRIVE STYLE | SLOT | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT | | MATERIAL | STEEL COMP 4340 OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES NOMINAL FIRST HOLE | | SHOULDER DIAMETER | 0.371 INCHES MINIMUM AND 0.373 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 1.025 INCHES MINIMUM AND 1.030 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | CV-2.2,FSCM 49956 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.282 INCHES MINIMUM AND 0.287 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 28 |
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