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National Stock Number:
5365-00-347-3221
Federal Supply Class:
5365
National Item Identification Number:
003473221
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.
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Manufacturer Information:
| 4M39K23B | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| INSIDE DIAMETER | 2.1860 INCHES MINIMUM AND 2.1865 INCHES MAXIMUM | | OUTSIDE DIAMETER | 2.3110 INCHES MINIMUM AND 2.3115 INCHES MAXIMUM | | OVERALL THICKNESS | 0.375 INCHES NOMINAL | | MATERIAL | ALUMINUM ALLOY | | SURFACE TREATMENT | ANODIZE |
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