5310-01-406-7990 WASHER,FLAT Index 5340-01-406-7992 HOLDER,SPRING

National Stock Number:
5365-01-406-7991

Federal Supply Class:
5365

National Item Identification Number:
014067991

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:
820-6652487-11853711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
INSIDE DIAMETER0.520 INCHES MINIMUM AND 0.525 INCHES MAXIMUM
MATERIALSTEEL
OUTSIDE DIAMETER0.864 INCHES MINIMUM AND 0.869 INCHES MAXIMUM
OVERALL THICKNESS0.424 INCHES NOMINAL
SPECIAL FEATURES4 THREADED HOLES, 0.125-40 UNC-2B; SPLIT IN RING FORMING TWO HALVES, EACH SPLIT IS ANGLED TO 15 DEGREES


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