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National Stock Number:
5365-00-215-8907
Federal Supply Class:
5365
National Item Identification Number:
002158907
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:
| 421653-1 | 80020 | NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 4.8.8.0.0.B BLDG 148-2 |
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Techincal Specification:
| INSIDE DIAMETER | 18.312 INCHES NOMINAL | | OUTSIDE DIAMETER | 19.991 INCHES MINIMUM AND 19.995 INCHES MAXIMUM | | OVERALL THICKNESS | 0.750 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-C-390,TYPE 1,COND AS CAST FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | COPPER ALLOY 862 | | SURFACE FINISH | 63.0 MICROINCHES OVERALL |
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