5310-00-639-0362 WASHER,RECESSED Index 5306-00-639-0387 BOLT,MACHINE

National Stock Number:
5365-00-639-0372

Federal Supply Class:
5365

National Item Identification Number:
006390372

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:
51162173030HAMILTON SUNDSTRAND CORPORATION


Techincal Specification:
HARDNESS RATING79.0 ROCKWELL A MINIMUM AND 82.0 ROCKWELL A MAXIMUM
INSIDE DIAMETER1.255 INCHES NOMINAL
OUTSIDE DIAMETER1.550 INCHES NOMINAL
OVERALL THICKNESS0.025 INCHES NOMINAL
MATERIALSTEEL CORROSION RESISTING


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