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National Stock Number:
5305-01-456-3608
Federal Supply Class:
5305
National Item Identification Number:
014563608
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:
| 1389887-102 | 03538 | LOCKHEED MARTIN CORPORATION | | 1389887-102 | 56232 | LOCKHEED MARTIN CORPORATION |
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Techincal Specification:
| FASTENER LENGTH | 0.880 INCHES MINIMUM AND 0.910 INCHES MAXIMUM | | HEAD DIAMETER | 0.360 INCHES MINIMUM AND 0.400 INCHES MAXIMUM | | HEAD HEIGHT | 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM | | HEAD STYLE | FLAT FILLISTER | | INTERNAL DRIVE STYLE | SLOT | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A581 TYPE 303 COND A STRAIGHTENED ASSN STD 1ST MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 303 OVERALL | | NOMINAL THREAD DIAMETER | 0.138 INCHES | | SHOULDER DIAMETER | 0.145 INCHES MINIMUM AND 0.155 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND ALL SHOULDERS | | SPECIAL FEATURES | 0.093 INCH UNDERCUT .06 INCH WIDE STARTING FROM THE BOTTOM OF SHOULDER TO TOP OF THREADS | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.590 INCHES MINIMUM AND 0.610 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 31 | | THREAD SERIES DESIGNATOR | UNC |
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