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National Stock Number:
5305-01-451-3491
Federal Supply Class:
5305
National Item Identification Number:
014513491
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:
| C7985-3D9R | 06725 | SPS TECHNOLOGIES, LLC | | C7985-3D9R | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | C7985-3D9R | 27624 | SPS TECHNOLOGIES LLC | | C7985-3D9R | 56878 | SPS TECHNOLOGIES, LLC | | C7985-3D9R | 80539 | SPS TECHNOLOGIES, LLC | | C7985-3D9R | 81755 | LOCKHEED MARTIN CORPORATION | | C7985-3D9R | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 0.910 INCHES MINIMUM AND 0.940 INCHES MAXIMUM | | HARDNESS RATING | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL | | HEAD DIAMETER | 0.258 INCHES MINIMUM AND 0.305 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP H11 OVERALL | | MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | SHOULDER DIAMETER | 0.2037 INCHES MINIMUM AND 0.2043 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER LENGTH | 0.553 INCHES MINIMUM AND 0.573 INCHES MAXIMUM FIRST SHOULDER | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.363 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNJF |
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