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National Stock Number:
5305-00-227-1407
Federal Supply Class:
5305
National Item Identification Number:
002271407
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:
| 3M218-5-15 | 76301 | THE BOEING COMPANY | | 55979-5-15 | 50392 | SPS TECHNOLOGIES INC | | HT1030-5-15 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | 55979-5-15 | 56878 | SPS TECHNOLOGIES, LLC | | HT52N15 | 73197 | HI-SHEAR CORPORATION | | HT1030-5-15 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT52N15 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| THREAD LENGTH | 0.505 INCHES MINIMUM AND 0.572 INCHES MAXIMUM | | FASTENER LENGTH | 1.453 INCHES MINIMUM AND 1.500 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | THREAD SERIES DESIGNATOR | UNF | | MATERIAL | IRON ALLOY 660 OVERALL | | THREAD DIRECTION | RIGHT-HAND | | SHOULDER DIAMETER | 0.342 INCHES MINIMUM AND 0.343 INCHES MAXIMUM FIRST SHOULDER | | COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL | | SHOULDER LENGTH | 0.806 INCHES MINIMUM AND 0.828 INCHES MAXIMUM FIRST SHOULDER | | HEAD STYLE | FLAT COUNTERSUNK | | HEAD DIAMETER | 0.629 INCHES MINIMUM AND 0.634 INCHES MAXIMUM | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT | | THREAD CLASS | 3A | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | HARDNESS RATING | 24.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM OVERALL | | THREAD QUANTITY PER INCH | 24 |
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