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National Stock Number:
5305-01-042-1209
Federal Supply Class:
5305
National Item Identification Number:
010421209
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:
| 00542-0283-0002 | 04274 | ROSEMOUNT INC DBA FISHER ROSEMOUNT SERVICE AND SUPPORT | | 00542-0283-0002 | 59885 | ROSEMOUNT AEROSPACE INC |
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Techincal Specification:
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.590 INCHES MINIMUM AND 0.610 INCHES MAXIMUM | | FASTENER LENGTH | 0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM | | FIRST DIAMETER FROM HEAD | 0.099 INCHES MINIMUM AND 0.101 INCHES MAXIMUM | | HARDNESS RATING | 94.0 ROCKWELL B NOMINAL OVERALL | | HEAD STYLE | PAN NO. 2 | | MINIMUM TENSILE STRENGTH | 88000 POUNDS PER SQUARE INCH | | MINIMUM YIELD STRENGTH | 72600 POUNDS PER SQUARE INCH | | SURFACE TREATMENT | NICKEL OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.359 INCHES MINIMUM AND 0.410 INCHES MAXIMUM |
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