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National Stock Number:
5305-01-055-3796
Federal Supply Class:
5305
National Item Identification Number:
010553796
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:
| 809263-13 | 29780 | MAG AEROSPACE INDUSTRIES, LLC | | 809263-13 | 92824 | MAG AEROSPACE INDUSTRIES INC. DBA MONOGRAMSYSTEMS DBA MONOGRAM SYSTEMS |
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Techincal Specification:
| FASTENER LENGTH | 0.715 INCHES NOMINAL | | HEAD HEIGHT | 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM | | HEAD DIAMETER | 0.438 INCHES NOMINAL | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | SLOT | | MATERIAL | STEEL COMP 630 OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SHOULDER DIAMETER | 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER LENGTH | 0.340 INCHES MINIMUM AND 0.345 INCHES MAXIMUM FIRST SHOULDER | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.325 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 20 |
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