4720-00-042-7247 HOSE ASSEMBLY,NONMETALLIC Index 5305-00-042-7251 SCREW,TAPPING

National Stock Number:
5305-00-042-7249

Federal Supply Class:
5305

National Item Identification Number:
000427249

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:
FFS92TYPE1STYLE4S81348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
FASTENER LENGTH0.750 INCHES NOMINAL
HEAD DIAMETER0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
HEAD HEIGHT0.102 INCHES MINIMUM AND 0.113 INCHES MAXIMUM
HEAD STYLEFILLISTER
INTERNAL DRIVE STYLESLOT
NOMINAL THREAD DIAMETER0.164 INCHES
NONDEFINITIVE SPEC/STD DATA4S STYLE AND I TYPE
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-611-CANC FED SPEC SINGLE MATERIAL RESPONSE
SCREW MATERIALCOPPER ALLOY
SCREW SURFACE TREATMENTCADMIUM OR ZINC
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.750 INCHES MAXIMUM
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNC


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