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National Stock Number:
5305-01-354-8770
Federal Supply Class:
5305
National Item Identification Number:
013548770
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:
| 7171261-02 | 90536 | LOCKHEED MARTIN CORP |
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Techincal Specification:
| FASTENER LENGTH | 0.420 INCHES NOMINAL | | HEAD DIAMETER | 0.210 INCHES MINIMUM AND 0.230 INCHES MAXIMUM | | HEAD HEIGHT | 0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | NOMINAL THREAD DIAMETER | 0.138 INCHES | | SHOULDER LENGTH | 0.215 INCHES MINIMUM AND 0.220 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER DIAMETER | 0.149 INCHES MINIMUM AND 0.154 INCHES MAXIMUM FIRST SHOULDER | | WIDTH ACROSS FLATS | 0.109 INCHES MINIMUM AND 0.111 INCHES MAXIMUM | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD LENGTH | 0.200 INCHES NOMINAL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 32 |
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