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National Stock Number:
5305-01-521-6880
Federal Supply Class:
5305
National Item Identification Number:
015216880
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:
| MS51576-36 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| FASTENER LENGTH | 1.9658 INCHES MINIMUM AND 2.0342 INCHES MAXIMUM | | HEAD DIAMETER | 0.5313 INCHES MINIMUM AND 0.5937 INCHES MAXIMUM | | HEAD HEIGHT | 0.2188 INCHES MINIMUM AND 0.2812 INCHES MAXIMUM | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A582/582M ASSN STD 1ST MATERIAL RESPONSE OR ASTM A193 ASSN STD 2ND MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | SHOULDER LENGTH | 1.497 INCHES MINIMUM AND 1.503 INCHES MAXIMUM OVERALL | | SHOULDER SHAPE | ROUND OVERALL | | SHOULDER DIAMETER | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM OVERALL | | WIDTH ACROSS FLATS | 0.1880 INCHES NOMINAL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35, TYPE II ASSN STD 1ST TREATMENT RESPONSE OR QQ-P-35, TYPE VI OR VII ASSN STD 2ND TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.4688 INCHES MINIMUM AND 0.5312 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 18 |
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