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National Stock Number:
5365-99-148-9820
Federal Supply Class:
5365
National Item Identification Number:
991489820
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:
| 4332609 | U1918 | MISSION SYSTEMS WIMBORNE LIMITED |
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Techincal Specification:
| INSIDE DIAMETER | 3.112 INCHES MINIMUM AND 3.114 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | BS S130 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL | | OUTSIDE DIAMETER | 3.645 INCHES MINIMUM AND 3.655 INCHES MAXIMUM | | OVERALL THICKNESS | 0.048 INCHES MINIMUM AND 0.052 INCHES MINIMUM | | SPECIAL FEATURES | RD HOLE |
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