6650-01-343-4342 SPACER,OPTICAL ELEMENT Index 5325-01-343-4344 INSERT,SCREW THREAD

National Stock Number:
5365-01-343-4343

Federal Supply Class:
5365

National Item Identification Number:
013434343

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:
895009-13589305SIMMONDS PRECISION PRODUCTS INC


Techincal Specification:
INSIDE DIAMETER1.125 INCHES MINIMUM AND 1.135 INCHES MAXIMUM
OUTSIDE DIAMETER1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM
OVERALL THICKNESS0.045 INCHES MINIMUM AND 0.065 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/11,T651 FED SPEC SINGLE MATERIAL RESPONSE
MATERIALALUMINUM ALLOY 6061
SURFACE TREATMENTANODIZE


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