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National Stock Number:
5305-01-377-3710
Federal Supply Class:
5305
National Item Identification Number:
013773710
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:
| 951731-1 | 06481 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | X62751 | 51506 | ACCURATE SCREW MACHINE CORP |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.138 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.408 INCHES MINIMUM AND | | 0.472 INCHES MAXIMUM | | FASTENER LENGTH | 0.470 INCHES MINIMUM AND | | 0.472 INCHES MAXIMUM | | MATERIAL | STEEL COMP 303 OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | HEAD STYLE | PAN | | HEAD DIAMETER | 0.186 INCHES MINIMUM AND | | 0.187 INCHES MAXIMUM | | HEAD HEIGHT | 0.151 INCHES MINIMUM AND | | 0.161 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.297 INCHES MINIMUM AND | | 0.327 INCHES MAXIMUM | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER DIAMETER | 0.005 INCHES MINIMUM AND | | 0.031 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 0.375 INCHES NOMINAL FIRST SHOULDER | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
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