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National Stock Number:
5305-00-487-5596
Federal Supply Class:
5305
National Item Identification Number:
004875596
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:
| 371-60 | 89944 | ELBITAMERICA, INC. |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.073 INCHES | | THREAD QUANTITY PER INCH | 12 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.075 INCHES MINIMUM | | FASTENER LENGTH | 0.165 INCHES MINIMUM AND | | 0.180 INCHES MAXIMUM | | MATERIAL | COPPER ALLOY OVERALL | | HEAD STYLE | FLAT COUNTERSUNK | | HEAD DIAMETER | 0.120 INCHES MINIMUM AND | | 0.123 INCHES MAXIMUM | | COUNTERSINK ANGLE | 90.0 DEGREES NOMINAL | | INTERNAL DRIVE STYLE | SLOT | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER DIAMETER | 0.815 INCHES MINIMUM AND | | 0.820 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 0.059 INCHES MINIMUM AND | | 0.074 INCHES MAXIMUM FIRST SHOULDER | | SPECIAL FEATURES | 0.010 IN. W OF UNDERCUT BETWEEN THREAD AND SHOULDER | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 89944 | | DESIGN CONTROL REFERENCE | 371-60 |
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