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National Stock Number:
5305-99-096-3333
Federal Supply Class:
5305
National Item Identification Number:
990963333
Description:
SCREW,EXTERNALLY RELIEVED BODY
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). It is No. 0 (0.060 IN.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below No. 10 (0.190 IN.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also BOLT, EXTERNALLY RELIEVED BODY and BOLT, INTERNAL WRENCHING.
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Manufacturer Information:
| 2688W203 | U1605 | HONEYWELL AEROSPACE YEOVIL |
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Techincal Specification:
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.420 INCHES NOMINAL | | FASTENER LENGTH | 0.860 INCHES MINIMUM | | FASTENER LENGTH | 0.870 INCHES NOMINAL | | FASTENER LENGTH | 0.880 INCHES MAXIMUM | | FIRST DIAMETER FROM HEAD | 0.205 INCHES MAXIMUM | | FIRST DIAMETER FROM HEAD | 0.200 INCHES MINIMUM | | HEAD STYLE | ERR-090 | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SPECIAL FEATURES | OXYGEN CLEAN COMPONENT | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ERR-060 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.445 INCHES MINIMUM ERR-100 | | THREAD LENGTH | 0.450 INCHES NOMINAL ERR-100 | | THREAD LENGTH | 0.455 INCHES MAXIMUM ERR-100 | | THREAD PITCH IN MILLIMETERS | 28.0 | | THREAD SERIES DESIGNATOR | UNJF |
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