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National Stock Number:
5305-01-507-8703
Federal Supply Class:
5305
National Item Identification Number:
015078703
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:
| 596-7409708-78 | 53711 | NAVAL SEA SYSTEMS COMMAND | | B831-4400-78 | 96169 | ELECTRIC BOAT CORPORATION | | ERB831-4400-MF00637 | 90699 | UNIMASCO INC |
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Techincal Specification:
| FASTENER LENGTH | 3.281 INCHES NOMINAL | | HEAD DIAMETER | 0.550 INCHES MINIMUM AND 0.570 INCHES MAXIMUM | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,CL 304,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 304 OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | SHOULDER DIAMETER | 2.781 INCHES NOMINAL FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER LENGTH | 2.781 INCHES NOMINAL FIRST SHOULDER | | SPECIAL FEATURES | DISTRIBUTION STATEMENT D-DATA IS EXPORT RESTRICTED | | WIDTH ACROSS FLATS | 0.187 INCHES NOMINAL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.368 INCHES MINIMUM AND 0.388 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 18 | | THREAD SERIES DESIGNATOR | UNC |
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