4710-00-105-6754 TUBE ASSEMBLY,METAL Index 5340-00-105-6757 STANDOFF,THREADED,SPACING

National Stock Number:
5365-00-105-6755

Federal Supply Class:
5365

National Item Identification Number:
001056755

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:
123CSM11840-126512NORTHROP GRUMMAN SYSTEMS CORPORATION
123CSM11840-161174NORTHROP GRUMMAN SYSTEMS CORPORATION
123CSM11840-179RG9NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
FSC APPLICATION DATARUDDER,AIRCRAFT
HARDNESS RATING39.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM
INSIDE DIAMETER2.062 INCHES MINIMUM AND 2.066 INCHES MAXIMUM
OUTSIDE DIAMETER2.438 INCHES NOMINAL
OVERALL THICKNESS0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-8844 MIL SPEC SINGLE MATERIAL RESPONSE
MATERIALSTEEL COMP 4340
SURFACE FINISH125.0 MICROINCHES LARGEST OUTSIDE DIAMETER
SURFACE FINISH125.0 MICROINCHES LEFT SIDE
SURFACE TREATMENTCADMIUM


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