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National Stock Number:
5305-01-143-7077
Federal Supply Class:
5305
National Item Identification Number:
011437077
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:
| 0N502584-5 | 98230 | NATIONAL SECURITY AGENCY |
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Techincal Specification:
| FASTENER LENGTH | 0.500 INCHES NOMINAL | | HARDNESS RATING | 40.0 ROCKWELL C NOMINAL OVERALL | | HEAD HEIGHT | 0.093 INCHES NOMINAL | | HEAD DIAMETER | 0.312 INCHES NOMINAL | | HEAD STYLE | FLAT KEYED | | INTERNAL DRIVE STYLE | TORQUE | | KEY LENGTH | 0.250 INCHES NOMINAL | | MATERIAL | ALUMINUM ALLOY OVERALL | | MINIMUM YIELD STRENGTH | 160000 POUNDS PER SQUARE INCH | | SHOULDER DIAMETER | 0.312 INCHES NOMINAL ALL SHOULDERS | | SHOULDER LENGTH | 0.062 INCHES NOMINAL ALL SHOULDERS | | SHOULDER SHAPE | ROUND ALL SHOULDERS | | THREAD LENGTH | 0.250 INCHES NOMINAL | | THREAD DIRECTION | RIGHT-HAND | | THREAD SERIES DESIGNATOR | UN |
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