5310-01-523-2566 WASHER,FLAT Index 5305-01-523-2568 SCREW,MACHINE

National Stock Number:
5305-01-523-2567

Federal Supply Class:
5305

National Item Identification Number:
015232567

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:
BACS12FA3K1581205THE BOEING COMPANY
BACS12FA3K15Z8T75BOEING DEFENCE AUSTRALIA LTD
BACS12FA3K15Z03F0BOEING DEFENCE AUSTRALIA LTD


Techincal Specification:
BEARING SURFACE OF HEAD SURFACE FINISH63.0 MICROINCHES
EXTENDED WASHER THICKNESS0.025 INCHES MINIMUM AND 0.030 INCHES MAXIMUM
EXTENDED WASHER DIAMETER0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM
FASTENER LENGTH0.9075 INCHES MINIMUM AND 0.9375 INCHES MAXIMUM
HEAD DIAMETER0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
HEAD HEIGHT0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM
HEAD STYLEROUND EXTENDED WASHER
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
PART NAME ASSIGNED BY CONTROLLING AGENCYSCREW, WASHER HEAD, CROSS RECESS
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD DIAMETER0.190 INCHES
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE
SCREW MATERIALTITANIUM ALLOY UNS R56400
SCREW SURFACE TREATMENTALUMINUM
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONBMS 10-85, TYPE 1, CAGE 81205 MFR REF SINGLE TREATMENT RESPONSE
SHANK SURFACE FINISH32.0 MICROINCHES
SPECIAL FEATURESSHANK END MARKING COLOR BLACK; USED ON LINING INSTALLATION - FWD. CARGO COMPT. CLG
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.8875 INCHES MINIMUM AND 0.9275 INCHES MAXIMUM
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNJF


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