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National Stock Number:
5305-00-247-9181
Federal Supply Class:
5305
National Item Identification Number:
002479181
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:
| 0N047552-1 | 98230 | NATIONAL SECURITY AGENCY |
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Techincal Specification:
| FASTENER LENGTH | 0.450 INCHES MINIMUM AND 0.490 INCHES MAXIMUM | | HEAD HEIGHT | 0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | NOMINAL THREAD DIAMETER | 0.138 INCHES | | INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE | | MATERIAL | STEEL COMP 303 OVERALL | | SHOULDER DIAMETER | 0.206 INCHES MINIMUM FIRST SHOULDER AND 0.208 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 0.140 INCHES MINIMUM FIRST SHOULDER AND 0.150 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SPECIAL FEATURES | 0.090 IN. THD RELIEF | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.310 INCHES MINIMUM AND 0.340 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNC | | WIDTH BETWEEN FLATS | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL |
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