5998-01-088-8926 CIRCUIT CARD ASSEMBLY Index 5305-01-088-8931 THUMBSCREW

National Stock Number:
5305-01-088-8927

Federal Supply Class:
5305

National Item Identification Number:
010888927

Description:
SCREW,MACHINE

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal 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. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.


Manufacturer Information:
MS51960-16B96906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
FASTENER LENGTH0.190 INCHES NOMINAL
HEAD DIAMETER0.207 INCHES MINIMUM AND 0.225 INCHES MAXIMUM
HEAD HEIGHT0.038 INCHES MINIMUM AND 0.047 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK UNDERCUT
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.112 INCHES
SCREW MATERIALSTEEL CORROSION RESISTING
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE
SCREW SURFACE TREATMENTOXIDE
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-13924 CL4 MIL SPEC SINGLE TREATMENT RESPONSE
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.143 INCHES MINIMUM AND 0.152 INCHES MAXIMUM
THREAD QUANTITY PER INCH48
THREAD SERIES DESIGNATORUNF


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