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National Stock Number:
5305-99-966-5637
Federal Supply Class:
5305
National Item Identification Number:
999665637
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:
| FL19061 | U1515 | DGS&E TIG IRC | | NM34870 | K3743 | BAE SYSTEMS GLOBAL COMBAT SYSTEMS LIMITED | | ROFN18825-35 | K3743 | BAE SYSTEMS GLOBAL COMBAT SYSTEMS LIMITED |
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Techincal Specification:
| FASTENER LENGTH | 1.340 INCHES NOMINAL | | HEAD DIAMETER | 0.430 INCHES NOMINAL | | HEAD HEIGHT | 0.220 INCHES NOMINAL | | HEAD STYLE | FLAT FILLISTER | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | STORES SPEC NO. HWS4 GROUP 12A MFR REF SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SHOULDER DIAMETER | 0.3085 INCHES MINIMUM AND 0.3105 INCHES MAXIMUM | | SHOULDER LENGTH | 0.840 INCHES NOMINAL | | SHOULDER SHAPE | ROUND | | SPECIAL FEATURES | OIL - GROUP 555;HD CHAMFERED 0.030 IN. LG BY 45 DEG; | | WIDTH ACROSS FLATS | 0.156 INCHES MINIMUM AND 0.159 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | STORES SPEC NO. HWS4 GROUP 530 MFR REF SINGLE TREATMENT RESPONSE | | SURFACE TREATMENT | PHOSPHATE | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.500 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNC |
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