4720-00-985-4812 HOSE,AIR DUCT Index 5310-00-985-4816 WASHER,FLAT

National Stock Number:
5305-00-985-4813

Federal Supply Class:
5305

National Item Identification Number:
009854813

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:
MS35249-6796906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
COUNTERSINK ANGLE0.80 DEGREES MINIMUM AND 0.82 DEGREES MAXIMUM
FASTENER LENGTH0.312 INCHES NOMINAL
HEAD DIAMETER0.348 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
HEAD HEIGHT0.065 INCHES MINIMUM AND 0.083 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK UNDERCUT
INTERNAL DRIVE STYLESLOT
NOMINAL THREAD DIAMETER0.190 INCHES
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,CLASS AND COND A/A FED SPEC SINGLE MATERIAL RESPONSE
SCREW MATERIALSTEEL CORROSION RESISTING
SCREW SURFACE TREATMENTPASSIVATE
THREAD CLASS2A
THREAD LENGTH0.312 INCHES NOMINAL
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH24
THREAD SERIES DESIGNATORUNC


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