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National Stock Number:
5305-01-418-3437
Federal Supply Class:
5305
National Item Identification Number:
014183437
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:
| 566-6404315-12 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| FASTENER LENGTH | 3.250 INCHES NOMINAL | | HEAD HEIGHT | 0.500 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE | | MATERIAL | NICKEL ALLOY K-500 OR NICKEL ALLOY 502 OVERALL | | NOMINAL THREAD DIAMETER | 0.625 INCHES | | SHOULDER DIAMETER | 0.742 INCHES MINIMUM AND 0.755 INCHES MAXIMUM THIRD SHOULDER | | SHOULDER DIAMETER | 0.940 INCHES NOMINAL FIRST SHOULDER | | SHOULDER DIAMETER | 0.995 INCHES MINIMUM AND 0.988 INCHES MAXIMUM SECOND SHOULDER | | SHOULDER LENGTH | 1.876 INCHES NOMINAL SECOND SHOULDER | | SHOULDER LENGTH | 0.060 INCHES NOMINAL FIRST SHOULDER | | SHOULDER LENGTH | 0.254 INCHES NOMINAL THIRD SHOULDER | | SHOULDER SHAPE | ROUND ALL SHOULDERS | | WIDTH BETWEEN FLATS | 4.500 INCHES NOMINAL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.060 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) | | THREAD QUANTITY PER INCH | 11 |
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