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National Stock Number:
5305-01-289-5852
Federal Supply Class:
5305
National Item Identification Number:
012895852
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:
| ABS20519-08E20 | 02310 | PATTONAIR USA INC | | ABS20519-08E20 | 70127 | ABSCOA INDUSTRIES INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.164 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.375 INCHES MINIMUM AND | | 0.390 INCHES MAXIMUM | | FASTENER LENGTH | 1.235 INCHES MINIMUM AND | | 1.280 INCHES MAXIMUM | | MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE STAND-OFF | | STEEL COMP 302 OR | | STEEL COMP 304 OR | | STEEL COMP 305 FASTENER | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS3652 ASSN STD SINGLE MATERIAL RESPONSE STAND-OFF | | QQ-S-763 FED SPEC ALL MATERIAL RESPONSES FASTENER | | SURFACE TREATMENT | PASSIVATE FASTENER | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE FASTENER | | HEAD STYLE | ROUND EXTENDED WASHER | | HEAD HEIGHT | 0.105 INCHES MINIMUM AND | | 0.115 INCHES MAXIMUM | | EXTENDED WASHER DIAMETER | 0.365 INCHES MINIMUM AND | | 0.385 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FIRST DIAMETER FROM HEAD | 0.120 INCHES MINIMUM AND | | 0.125 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.860 INCHES MINIMUM AND | | 0.890 INCHES MAXIMUM | | SPECIAL FEATURES | O-RING UNDER HEAD |
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