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National Stock Number:
5305-01-185-2212
Federal Supply Class:
5305
National Item Identification Number:
011852212
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:
| 11879C4-5A | 59563 | REID PRODUCTS INC. | | 3M902C4-5A | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | HT4020-4-5AY | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4020-4-5AY | 0PTK6 | SPS TECHNOLOGIES INC | | HT4020-4-5AY | 17446 | HUCK INTERNATIONAL, INC | | 3M902C4-5A | 76301 | THE BOEING COMPANY | | HT4020-4-5AY | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | HT4020-4-5AY | 60516 | WEST COAST AEROSPACE, INC. | | HT4020-4-5AY | 73197 | HI-SHEAR CORPORATION | | HT4020-4-5AY | 80539 | SPS TECHNOLOGIES, LLC | | HT4020-4-5AY | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4020-4-5AY | 97928 | HUCK INTL INC | | HT4020-4-5AY | K5673 | SPS TECHNOLOGIES LTD TJ BROOKS DIVISION | | HT4020-4-5AY | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | | WC4020-4-5AY | 60516 | WEST COAST AEROSPACE, INC. |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.469 INCHES NOMINAL | | FASTENER LENGTH | 0.765 INCHES MINIMUM AND | | 0.812 INCHES MAXIMUM | | MATERIAL | STEEL COMP XM-13 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH | | HEAD STYLE | FLAT COUNTERSUNK | | HEAD DIAMETER | 0.502 INCHES MINIMUM AND | | 0.507 INCHES MAXIMUM | | COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER DIAMETER | 0.280 INCHES MINIMUM AND | | 0.281 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 0.302 INCHES MINIMUM AND | | 0.322 INCHES MAXIMUM FIRST SHOULDER | | SPECIAL FEATURES | FURNISHED WITH ONE O RING. MUST BE LUBRICATED WITH CETYL ALCOHOL |
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