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National Stock Number:
5305-01-126-4717
Federal Supply Class:
5305
National Item Identification Number:
011264717
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:
| 4001397-3 | 82340 | L3HARRIS TECHNOLOGIES, INC. | | 4245261-020 | 04660 | AIL SYSTEMS INC SUB OF EATON CORP | | 4429 | 00141 | ROLLER BEARING CO OF AMERICA, INC | | 885B052664 | 03956 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | PZ-20-3 | 29440 | W. M. BERG INC | | 44D29 | 29964 | ALLIED DEVICES CORP DBA ABSOLUTE PRECISION CO |
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Techincal Specification:
| FASTENER LENGTH | 0.562 INCHES MINIMUM AND 0.564 INCHES MAXIMUM | | HEAD DIAMETER | 0.375 INCHES NOMINAL | | HEAD HEIGHT | 0.187 INCHES NOMINAL | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL | STEEL COMP 303 OVERALL | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | SHOULDER DIAMETER | 0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER LENGTH | 0.312 INCHES MINIMUM AND 0.314 INCHES MAXIMUM FIRST SHOULDER | | WIDTH ACROSS FLATS | 0.125 INCHES NOMINAL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 2A | | THREAD LENGTH | 0.250 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 32 |
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