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National Stock Number:
5305-01-406-9163
Federal Supply Class:
5305
National Item Identification Number:
014069163
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:
| 5266732 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.312 INCHES NOMINAL | | FASTENER LENGTH | 0.437 INCHES NOMINAL | | MATERIAL | STEEL COMP 316 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763, COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | HEAD STYLE | FLAT CHAMFER | | HEAD DIAMETER | 0.625 INCHES NOMINAL | | HEAD HEIGHT | 0.193 INCHES NOMINAL | | INTERNAL DRIVE STYLE | SLOT | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | ROUND SECOND SHOULDER | | SHOULDER DIAMETER | 0.365 INCHES MINIMUM AND | | 0.370 INCHES MAXIMUM FIRST SHOULDER | | 0.190 INCHES NOMINAL SECOND SHOULDER | | SHOULDER LENGTH | 0.125 INCHES MINIMUM AND | | 0.130 INCHES MAXIMUM FIRST SHOULDER | | 0.090 INCHES NOMINAL SECOND SHOULDER | | SPECIAL FEATURES | ELECTROPOLISH, 5266629, TY 1 |
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