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National Stock Number:
5305-01-185-7127
Federal Supply Class:
5305
National Item Identification Number:
011857127
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:
| 75A304021-2005 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | THREAD QUANTITY PER INCH | 24 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.600 INCHES NOMINAL | | FASTENER LENGTH | 3.106 INCHES NOMINAL | | MATERIAL | TITANIUM ALLOY OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-T-9047 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | HEAD STYLE | FLAT CHAMFER | | HEAD DIAMETER | 0.750 INCHES NOMINAL | | HEAD HEIGHT | 0.675 INCHES NOMINAL | | INTERNAL DRIVE STYLE | SQUARE | | WIDTH ACROSS FLATS | 0.378 INCHES MINIMUM AND | | 0.385 INCHES MAXIMUM | | SHOULDER SHAPE | ROUND ALL SHOULDERS | | SHOULDER DIAMETER | 0.610 INCHES NOMINAL FIRST SHOULDER | | 0.364 INCHES MINIMUM AND | | 0.374 INCHES MAXIMUM SECOND SHOULDER | | SHOULDER LENGTH | 0.875 INCHES NOMINAL FIRST SHOULDER | | 0.680 INCHES MAXIMUM SECOND SHOULDER | | SPECIAL FEATURES | FOUR PRONES ON HEAD 0.040 IN. MIN DIA,0.050 IN. MAX DIA TO 0.066 IN MIN DIA,0.076 IN. MAX DIA | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 76301 | | DESIGN CONTROL REFERENCE | 75A304021-2005 |
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