4820-00-951-5312 VALVE,CHECK Index 5340-00-951-5324 INACTIVE

National Stock Number:
5305-00-951-5321

Federal Supply Class:
5305

National Item Identification Number:
009515321

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:
3321-99590073CMC ELECTRONICS INC


Techincal Specification:
FASTENER LENGTH0.750 INCHES NOMINAL
HEAD HEIGHT0.094 INCHES NOMINAL
HEAD STYLEHEXAGON
INTERNAL DRIVE STYLESLOT
NOMINAL THREAD DIAMETER0.086 INCHES
SCREW MATERIALSTEEL COMP 1213
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2 CL 2 FED SPEC ALL TREATMENT RESPONSES
SCREW SURFACE TREATMENTCADMIUM AND CHROMATE
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.218 INCHES MINIMUM AND 0.281 INCHES MAXIMUM
THREAD QUANTITY PER INCH56
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
WIDTH BETWEEN FLATS0.187 INCHES NOMINAL


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