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National Stock Number:
5305-00-150-3367
Federal Supply Class:
5305
National Item Identification Number:
001503367
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:
| AIC4533-7-2 | 06725 | SPS TECHNOLOGIES, LLC | | C4533-7-2 | 81755 | LOCKHEED MARTIN CORPORATION | | VT1658-7-2 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS 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 | 0.316 INCHES MINIMUM | | FASTENER LENGTH | 1.364 INCHES MINIMUM AND | | 1.394 INCHES MAXIMUM | | MATERIAL | STEEL COMP H11 OVERALL | | SURFACE TREATMENT | CADMIUM HEAD | | CADMIUM GRIP | | CADMIUM THREADS | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS672 ASSN STD SINGLE TREATMENT RESPONSE HEAD | | NAS672 ASSN STD SINGLE TREATMENT RESPONSE GRIP | | NAS672 ASSN STD SINGLE TREATMENT RESPONSE THREADS | | HEAD STYLE | FLAT CHAMFER | | HEAD DIAMETER | 0.490 INCHES MINIMUM AND | | 0.510 INCHES MAXIMUM | | HEAD HEIGHT | 0.080 INCHES MINIMUM AND | | 0.090 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.248 INCHES MINIMUM AND | | 1.278 INCHES MAXIMUM FIRST HOLE | | SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM AND | | 0.086 INCHES MAXIMUM FIRST HOLE | | SPECIAL FEATURES | SHOULDER 16 MICROINCH FINISH |
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