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National Stock Number:
5305-00-004-3158
Federal Supply Class:
5305
National Item Identification Number:
000043158
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:
| 20794-5 | 09344 | ROCKWELL COLLINS, INC. DBA RC DISPLAYS SYSTEMS | | 20794-5 | 0EER9 | ANIXTER INC. | | 20794-5 | 56563 | ALIGN AEROSPACE LLC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.138 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.141 INCHES MINIMUM AND | | 0.171 INCHES MAXIMUM | | FASTENER LENGTH | 0.428 INCHES MINIMUM AND | | 0.448 INCHES MAXIMUM | | MATERIAL | STEEL COMP 304L OR | | STEEL COMP 316L OR | | STEEL COMP 302 OR | | STEEL COMP 347 OR | | STEEL COMP 321 OR | | STEEL COMP 317 OR | | STEEL COMP 316 OR | | STEEL COMP 310 OR | | STEEL COMP 309 OR | | STEEL COMP 305 OR | | STEEL COMP 304 OVERALL | | SURFACE TREATMENT | OXIDE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924 CL 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | PAN | | HEAD DIAMETER | 0.256 INCHES MINIMUM AND | | 0.270 INCHES MAXIMUM | | HEAD HEIGHT | 0.087 INCHES MINIMUM AND | | 0.097 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FIRST DIAMETER FROM HEAD | 0.081 INCHES MINIMUM AND | | 0.091 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.277 INCHES MINIMUM AND | | 0.287 INCHES MAXIMUM |
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