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National Stock Number:
5305-01-468-1687
Federal Supply Class:
5305
National Item Identification Number:
014681687
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:
| A3168136-2 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR |
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Techincal Specification:
| COUNTERSINK ANGLE | 91.0 DEGREES NOMINAL | | EXTERNAL THREAD TOLERANCE CLASS | 6G | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 2 | | FASTENER LENGTH | 2.5 MILLIMETERS MINIMUM AND 3.5 MILLIMETERS MAXIMUM | | HEAD DIAMETER | 5.5 MILLIMETERS MINIMUM AND 5.8 MILLIMETERS MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE II | | NOMINAL THREAD DIAMETER | 3.0 MILLIMETERS | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 2.5 MILLIMETERS MINIMUM AND 3.5 MILLIMETERS MAXIMUM | | THREAD PITCH IN MILLIMETERS | 0.5 | | THREAD SERIES DESIGNATOR | M |
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