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National Stock Number:
5305-01-143-4076
Federal Supply Class:
5305
National Item Identification Number:
011434076
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:
| 11879C7-21A | 59563 | REID PRODUCTS INC. | | 3M902C7-21A | 76301 | THE BOEING COMPANY | | HT4020-7-21AY | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4020-7-21AY | 17446 | HUCK INTERNATIONAL, INC | | HT4020-7-21AY | 73197 | HI-SHEAR CORPORATION | | 3M902C7-21A | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4020-7-21AY | 80539 | SPS TECHNOLOGIES, LLC | | HT4020-7-21AY | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4020-7-21AY | 97928 | HUCK INTL INC | | HT4020-7-21AY | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL | | FASTENER LENGTH | 1.952 INCHES MINIMUM AND 1.999 INCHES MAXIMUM | | HEAD DIAMETER | 0.881 INCHES MINIMUM AND 0.888 INCHES MAXIMUM | | HEAD HEIGHT | 0.113 INCHES MINIMUM AND 0.120 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP XM-13 OVERALL | | NOMINAL THREAD DIAMETER | 0.438 INCHES | | SHOULDER DIAMETER | 0.4677 INCHES MINIMUM AND 0.4682 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 1.182 INCHES MINIMUM AND 1.209 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SPECIAL FEATURES | FURNISHED WITH ONE RUBBER O RING | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.630 INCHES MINIMUM AND 0.697 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 20 |
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