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National Stock Number:
5305-01-171-5307
Federal Supply Class:
5305
National Item Identification Number:
011715307
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:
| 168439-1 | 49956 | RAYTHEON COMPANY |
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Techincal Specification:
| FASTENER LENGTH | 1.203 INCHES NOMINAL | | HEAD DIAMETER | 0.562 INCHES NOMINAL | | HEAD HEIGHT | 0.250 INCHES NOMINAL | | HEAD STYLE | PAN NO. 2 | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | NONSTANDARD THREAD PITCH DIAMETER | +0.2691/+0.2752 INCHES | | INTERNAL DRIVE STYLE | SLOT | | MATERIAL | STEEL OVERALL | | SHOULDER DIAMETER | 0.312 INCHES MINIMUM FIRST SHOULDER AND 0.594 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 0.250 INCHES NOMINAL FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | THREAD CLASS | 1A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.062 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 18 | | THREAD SERIES DESIGNATOR | UNC |
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