4820-01-504-8145 VALVE,STOP-CHECK Index 2040-01-504-8147 COVER,HATCH

National Stock Number:
5365-01-504-8146

Federal Supply Class:
5365

National Item Identification Number:
015048146

Description:
SPACER,RING

Detail:
A circular-shaped item designed to maintain predetermined distance between assembled parts and/or for distributing pressure or preventing endwise movement between member parts. It has a solid cross-section and two flat parallel bearing surfaces. The distance between the bearing surfaces perpendicular to the axis of the centrally located hole shall not exceed 25 percent of the outside diameter. The diameter of the centrally located hole must exceed 75 percent of the outside diameter. Excludes laminated items. For items manufactured from impregnated graphite or lubricated nonmetallic materials, excluding felt or plastics, see GASKET. For items manufactured from lubricated plastics, see BEARING, WASHER, THRUST. For items manufactured from lubricated felt, see FELT, MECHANICAL, PREFORMED. Excludes DISK, VALVE; INSULATOR WASHER; and SHIM. See also SPACER, PLATE and SPACER, SLEEVE.


Manufacturer Information:
L305362043999THE BOEING COMPANY
L3053620-00943999THE BOEING COMPANY


Techincal Specification:
INSIDE DIAMETER0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM
OUTSIDE DIAMETER0.500 INCHES NOMINAL
OVERALL THICKNESS0.255 INCHES MINIMUM AND 0.265 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5734 ASSN STD SINGLE MATERIAL RESPONSE
MATERIALSTEEL CORROSION RESISTING
PART NAME ASSIGNED BY CONTROLLING AGENCYSPACER-UPPERWING, PIVOT FAIRING
SPECIAL FEATURESINNER RING RECCESED 0.035, R. 0.015, DIA. 0.625


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