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National Stock Number:
5305-00-803-5472
Federal Supply Class:
5305
National Item Identification Number:
008035472
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:
| LA450BS-6 | 59180 | CIRCOR PUMPS NORTH AMERICA LLC | | LA450BS6-0000 | 16712 | SIEMENS ENERGY, INC. | | LA450BS6-0000 | 59180 | CIRCOR PUMPS NORTH AMERICA LLC |
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Techincal Specification:
| FASTENER LENGTH | 2.750 INCHES NOMINAL | | HEAD DIAMETER | 0.750 INCHES NOMINAL | | HEAD HEIGHT | 0.135 INCHES NOMINAL | | HEAD STYLE | PAN NO. 2 | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.437 INCHES | | SHOULDER DIAMETER | 0.500 INCHES NOMINAL FIRST SHOULDER | | SHOULDER DIAMETER | 0.593 INCHES NOMINAL SECOND SHOULDER | | SHOULDER SHAPE | ROUND ALL SHOULDERS | | SHOULDER LENGTH | 0.633 INCHES NOMINAL FIRST SHOULDER | | SHOULDER LENGTH | 1.563 INCHES NOMINAL SECOND SHOULDER | | SPECIAL FEATURES | FURNISHED WITH ONE SLOTTED HEX NUT | | WIDTH ACROSS FLATS | 0.322 INCHES NOMINAL | | SURFACE TREATMENT | DICHROMATE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.500 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNF |
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