6620-00-487-4877 CAP ASSY,CLOSURE Index 6605-00-487-4884 GASKET FRONT

National Stock Number:
5305-00-487-4879

Federal Supply Class:
5305

National Item Identification Number:
004874879

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:
7456030011026512NORTHROP GRUMMAN SYSTEMS CORPORATION
CB21-60270214GTAA LLC
EAB170081996U S ARMY AVIATION AND MISSILE COMMAND


Techincal Specification:
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH0.250 INCHES NOMINAL
HEAD DIAMETER0.162 INCHES MINIMUM AND 0.177 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLESLOT
MINIMUM TENSILE STRENGTH62000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.112 INCHES
SCREW MATERIALALUMINUM ALLOY 2024
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE
SCREW SURFACE TREATMENTANODIZE
THREAD CLASS2A
THREAD LENGTH0.250 INCHES MINIMUM
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH48
THREAD SERIES DESIGNATORUNF


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