5930-00-811-6938 SWITCH,TOGGLE Index 5305-00-811-6951 SCREW,MACHINE

National Stock Number:
5305-00-811-6950

Federal Supply Class:
5305

National Item Identification Number:
008116950

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:
FFS92TYPE1STYLE2S81348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY MATERIAL AND THREAD CLASS
FASTENER LENGTH0.625 INCHES NOMINAL
HEAD DIAMETER0.568 INCHES MINIMUM AND 0.635 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLESLOT
NOMINAL THREAD DIAMETER0.312 INCHES
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 2S STYLE
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CL A FED SPEC 1ST MATERIAL RESPONSE OR QQ-N-281,CL B FED SPEC 2ND MATERIAL RESPONSE
SCREW MATERIALNICKEL ALLOY 400 OR NICKEL ALLOY R-405
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.514 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNC
THREAD QUANTITY PER INCH18


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