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National Stock Number:
5305-00-638-2845
Federal Supply Class:
5305
National Item Identification Number:
006382845
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:
| 311-974 | 21900 | FEDERAL DIV OF VICTOREEN INSTRUMENT CO INC | | 611499 | 06650 | BELL AND HOWELL PHILLIPSBURG CO CORPORATE OFFICES | | 711499 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH | | SCB77375 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR |
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Techincal Specification:
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.015 INCHES MINIMUM AND 0.025 INCHES MAXIMUM | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FASTENER LENGTH | 0.088 INCHES MINIMUM AND 0.093 INCHES MAXIMUM | | FIRST DIAMETER FROM HEAD | 0.066 INCHES MINIMUM AND 0.076 INCHES MAXIMUM | | HEAD DIAMETER | 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM | | HEAD HEIGHT | 0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM | | HEAD STYLE | FILLISTER | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 303 OVERALL | | NOMINAL THREAD DIAMETER | 0.099 INCHES | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.063 INCHES MINIMUM AND 0.078 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 48 | | THREAD SERIES DESIGNATOR | UNC |
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