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National Stock Number:
5305-01-568-1024
Federal Supply Class:
5305
National Item Identification Number:
015681024
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:
| 11927C6-21A | 59563 | REID PRODUCTS INC. | | HT4020-6-21AX | 06725 | SPS TECHNOLOGIES, LLC | | HT4020-6-21AX | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4020-6-21AX | 17446 | HUCK INTERNATIONAL, INC | | HT4020-6-21AX | 27624 | SPS TECHNOLOGIES LLC | | HT4020-6-21AX | 56878 | SPS TECHNOLOGIES, LLC | | HT4020-6-21AX | 73197 | HI-SHEAR CORPORATION | | HT4020-6-21AX | 80539 | SPS TECHNOLOGIES, LLC | | HT4020-6-21AX | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4020-6-21AX | K5673 | SPS TECHNOLOGIES LTD TJ BROOKS DIVISION | | ST3M653C6-21A | 06710 | VALLEY-TODECO, INC. | | ST3M653C6-21A | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | ST3M653C6-21A | 1VSL7 | HOUSTON PRECISION FASTENERS I LP | | ST3M653C6-21A | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | ST3M653C6-21A | 76301 | THE BOEING COMPANY | | WC4020-6-21AX | 60516 | WEST COAST AEROSPACE, INC. |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 1.953 INCHES NOMINAL | | HEAD HEIGHT | 0.109 INCHES MINIMUM AND 0.111 INCHES MAXIMUM | | HEAD DIAMETER | 0.756 INCHES MINIMUM AND 0.760 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | MATERIAL | STEEL COMP XM-13 OVERALL | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | SHOULDER DIAMETER | 0.389 INCHES MINIMUM AND 0.390 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER LENGTH | 1.129 INCHES MINIMUM AND 1.151 INCHES MAXIMUM FIRST SHOULDER | | SPECIAL FEATURES | FURNISHED WITH ONE RUBBER O RING | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.641 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNJF |
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