1240-99-964-4034 MOUNTED PRISM Index 1240-99-964-4036 CELL ASSEMBLY,OPTICAL INSTRUMENT

National Stock Number:
5365-99-964-4035

Federal Supply Class:
5365

National Item Identification Number:
999644035

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:
0S85946U1515DGS&E TIG IRC
SS22A407K5728G E C MARCONI AVIONICS LTD
SS22A407U2248SELEX ELSAG LTD


Techincal Specification:
INSIDE DIAMETER28.00 MILLIMETERS MINIMUM AND 28.03 MILLIMETERS MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONBS 249 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE
MATERIALCOPPER ALLOY
OUTSIDE DIAMETER30.90 MILLIMETERS MINIMUM AND 31.10 MILLIMETERS MAXIMUM
OVERALL THICKNESS1.86 MILLIMETERS MINIMUM AND 2.06 MILLIMETERS MAXIMUM
SPECIAL FEATURESBRASS;ID CHAMFERED ONE END


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