5310-00-720-8578 WASHER,FLAT Index 5310-00-720-8580 NUT,SELF-LOCKING,BARREL

National Stock Number:
5365-00-720-8579

Federal Supply Class:
5365

National Item Identification Number:
007208579

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:
54636573030HAMILTON SUNDSTRAND CORPORATION


Techincal Specification:
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
INSIDE DIAMETER0.331 INCHES MINIMUM AND 0.336 INCHES MAXIMUM
OUTSIDE DIAMETER0.374 INCHES MINIMUM AND 0.376 INCHES MAXIMUM
OVERALL THICKNESS0.042 INCHES MINIMUM AND 0.044 INCHES MAXIMUM
MATERIALSTEEL CORROSION RESISTING
SURFACE TREATMENTPASSIVATE


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