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National Stock Number:
5365-01-471-0989
Federal Supply Class:
5365
National Item Identification Number:
014710989
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:
| E87889-3 | 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 | 18.510 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-601, ALY 355, TEMP T6 FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 355.0 AND ALUMINUM ALLOY C355.0 | | OUTSIDE DIAMETER | 19.970 INCHES NOMINAL | | OVERALL THICKNESS | 0.750 INCHES NOMINAL | | SPECIAL FEATURES | 12 EQUALLY SPACED HOLES, 0.015 DIA | | SUPPLEMENTARY FEATURES | FINISHED PARTS 100% PENETRANT INSPECTED PER MIL-STD-6866 | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625, TY 1, CL 1 MIL SPEC SINGLE TREATMENT RESPONSE |
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