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National Stock Number:
5305-01-285-9284
Federal Supply Class:
5305
National Item Identification Number:
012859284
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:
| 717512848-001 | 04939 | LOCKHEED MARTIN CORPORATION |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.086 INCHES | | THREAD QUANTITY PER INCH | 56 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.327 INCHES MINIMUM AND | | 0.362 INCHES MAXIMUM | | FASTENER LENGTH | 0.357 INCHES MINIMUM AND | | 0.387 INCHES MAXIMUM | | MATERIAL | STEEL COMP 630 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | HEAD STYLE | HEXAGON | | HEAD HEIGHT | 0.086 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 0.177 INCHES MINIMUM AND | | 0.187 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | SLOT | | SHOULDER SHAPE | ROUND ALL SHOULDERS | | SHOULDER DIAMETER | 0.094 INCHES NOMINAL ALL SHOULDERS | | SHOULDER LENGTH | 0.064 INCHES MINIMUM AND | | 0.067 INCHES MAXIMUM FIRST SHOULDER | | 0.025 INCHES MINIMUM AND | | 0.030 INCHES MAXIMUM SECOND SHOULDER | | SPECIAL FEATURES | RELIEF 0.180-0.182 IN. LG; 0.074-0.076 IN. DIA |
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