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National Stock Number:
5365-01-066-4255
Federal Supply Class:
5365
National Item Identification Number:
010664255
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:
| 16C0056-9 | 81755 | LOCKHEED MARTIN CORPORATION |
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Techincal Specification:
| INSIDE DIAMETER | 0.571 INCHES MINIMUM AND 0.579 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.619 INCHES MINIMUM AND 0.624 INCHES MAXIMUM | | OVERALL THICKNESS | 0.040 INCHES MINIMUM AND 0.048 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-T-7081,T4 MIL SPEC SINGLE MATERIAL RESPONSE OR ASTM A176 ASSN STD SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 6061 |
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