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National Stock Number:
5305-00-274-3139
Federal Supply Class:
5305
National Item Identification Number:
002743139
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:
| 202099 | 56232 | LOCKHEED MARTIN CORPORATION | | 325566PC2 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.086 INCHES | | THREAD QUANTITY PER INCH | 64 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.250 INCHES MINIMUM | | FASTENER LENGTH | 0.641 INCHES MINIMUM AND | | 0.671 INCHES MAXIMUM | | MATERIAL | STEEL COMP 1115 OR | | STEEL COMP 1117 OR | | STEEL COMP 1120 OR | | STEEL COMP 1211 OR | | STEEL COMP 1212 OR | | STEEL COMP 1213 OR | | STEEL COMP 1018 OVERALL | | HEAD STYLE | FILLISTER | | HEAD DIAMETER | 0.140 INCHES MINIMUM AND | | 0.171 INCHES MAXIMUM | | HEAD HEIGHT | 0.046 INCHES MINIMUM AND | | 0.078 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER DIAMETER | 0.103 INCHES MINIMUM AND | | 0.104 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 0.328 INCHES MINIMUM AND | | 0.359 INCHES MAXIMUM FIRST SHOULDER |
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