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National Stock Number:
5305-01-260-0432
Federal Supply Class:
5305
National Item Identification Number:
012600432
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:
| 75A304-21-2007 | 18463 | CARDEN MACHINE SHOP, INC. | | 75A304021-2007 | 76301 | THE BOEING COMPANY | | PL75A304021 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| FASTENER LENGTH | 2.431 INCHES NOMINAL | | HEAD DIAMETER | 0.750 INCHES NOMINAL | | HEAD HEIGHT | 0.675 INCHES NOMINAL | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | SQUARE | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP XM-13 OVERALL | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | SHOULDER DIAMETER | 0.363 INCHES MINIMUM AND 0.370 INCHES MAXIMUM SECOND SHOULDER | | SHOULDER DIAMETER | 0.570 INCHES MINIMUM AND 0.580 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND ALL SHOULDERS | | SHOULDER LENGTH | 0.380 INCHES NOMINAL SECOND SHOULDER | | SHOULDER LENGTH | 0.875 INCHES NOMINAL FIRST SHOULDER | | SPECIAL FEATURES | CONCENTRIC UNTHREADED HOLE ON HEAD SIDE,0.407 DIA.,1.400 LENGTH,COUNTERBORE 0.590 DIA,0.200 LENGTH | | WIDTH ACROSS FLATS | 0.378 INCHES MINIMUM AND 0.385 INCHES MAXIMUM | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.600 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNJF |
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