5310-00-618-5875 WASHER,FLAT Index 5310-00-618-5877 WASHER,FLAT

National Stock Number:
5365-00-618-5876

Federal Supply Class:
5365

National Item Identification Number:
006185876

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:
56B23360-705861EGLIN AIR FORCE BASE
56B23360-780049DEPARTMENT OF THE AIR FORCE
56B23360-798750SAN ANTONIO AIR LOGISTICS CENTER
63C52625-1998750SAN ANTONIO AIR LOGISTICS CENTER
63C52625-1998752WARNER ROBINS AIR LOGISTICS CENTER


Techincal Specification:
INSIDE DIAMETER3.281 INCHES NOMINAL
OUTSIDE DIAMETER4.250 INCHES NOMINAL
OVERALL THICKNESS0.0312 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE
MATERIALCOPPER ALLOY 360
SURFACE FINISH125.0 MICROINCHES LEFT SIDE
SURFACE FINISH125.0 MICROINCHES RIGHT SIDE


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