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National Stock Number:
5305-01-586-2087
Federal Supply Class:
5305
National Item Identification Number:
015862087
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:
| 802027335925-1 | 12255 | NAVY, UNITED STATES DEPARTMENT OF THE |
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Techincal Specification:
| THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNC | | FASTENER LENGTH | 0.938 INCHES NOMINAL | | HEAD DIAMETER | 0.500 INCHES NOMINAL | | HEAD HEIGHT | 0.220 INCHES NOMINAL | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | SLOT | | MATERIAL | STEEL COMP 302 OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | 18-8 STAINLESS STEEL SLOTTED PRECISION SHOULDER SCREW | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SHOULDER DIAMETER | 0.312 INCHES NOMINAL FIRST SHOULDER | | SHOULDER LENGTH | 0.500 INCHES NOMINAL FIRST SHOULDER | | SHOULDER SHAPE | ROUND OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.440 INCHES NOMINAL |
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