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National Stock Number:
5305-01-178-6352
Federal Supply Class:
5305
National Item Identification Number:
011786352
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:
| 5529241 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.138 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.295 INCHES MINIMUM | | FASTENER LENGTH | 0.667 INCHES MINIMUM AND | | 0.687 INCHES MAXIMUM | | MATERIAL | STEEL COMP 302 OR | | STEEL COMP 321 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AISI 302 COND B ASSN STD 1ST MATERIAL RESPONSE OR | | AISI 321 HALF HARD ASSN STD 2ND MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | MINIMUM YIELD STRENGTH | 108000 POUNDS PER SQUARE INCH | | HEAD STYLE | HEXAGON | | HEAD HEIGHT | 0.198 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 0.312 INCHES NOMINAL | | INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER DIAMETER | 0.156 INCHES MINIMUM AND | | 0.158 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 0.271 INCHES MINIMUM AND | | 0.275 INCHES MAXIMUM FIRST SHOULDER | | SPECIAL FEATURES | SHOULDER UNDERCUT FOE RELIEF |
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