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National Stock Number:
5365-01-615-4992
Federal Supply Class:
5365
National Item Identification Number:
016154992
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:
| 320537 | 80020 | NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 4.8.8.0.0.B BLDG 148-2 | | 320537-2B | 4MJR3 | PARTS LIFE INC | | 320537-2B | 80020 | NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 4.8.8.0.0.B BLDG 148-2 |
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Techincal Specification:
| OVERALL THICKNESS | 0.391 INCHES MINIMUM AND | | 0.421 INCHES MAXIMUM | | INSIDE DIAMETER | 4.020 INCHES MINIMUM AND | | 4.025 INCHES MAXIMUM | | OUTSIDE DIAMETER | 5.036 INCHES MINIMUM AND | | 5.041 INCHES MAXIMUM | | MATERIAL | COPPER ALLOY | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B584,ALY C92200,AS CAST ASSN STD SINGLE MATERIAL RESPONSE | | SURFACE FINISH | 125.0 MICROINCHES OVERALL | | SPECIAL FEATURES | SPACER HAS 12 HOLES DRILLED THRU AND EQUALLY SPACED;3 EQUALLY SPACED(EVERY 4TH HOLE)ARE 8-32 UNC-2B THREADED;REMAINING 9 ARE UNTHREADED AND 0.1360 DIAMETER THRU HOLES | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SPACER(5.063)PISTON & ROD PACKING |
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