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National Stock Number:
5305-99-864-6866
Federal Supply Class:
5305
National Item Identification Number:
998646866
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:
| 2688W704 | U1605 | HONEYWELL AEROSPACE YEOVIL |
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Techincal Specification:
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.350 INCHES NOMINAL | | FASTENER LENGTH | 0.625 INCHES NOMINAL | | FIRST DIAMETER FROM HEAD | 0.116 INCHES MINIMUM AND 0.120 INCHES MAXIMUM | | HEAD DIAMETER | 0.262 INCHES MINIMUM AND 0.270 INCHES MAXIMUM | | HEAD HEIGHT | 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM | | HEAD STYLE | KNURLED NO. 1 | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL | STEEL | | NOMINAL THREAD DIAMETER | 0.164 INCHES | | SPECIAL FEATURES | STEEL ALLOY | | WIDTH BETWEEN FLATS | 0.1250 INCHES MINIMUM AND 0.1270 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TYPE 1 CLASS 3 MIL STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.275 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNC |
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