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National Stock Number:
5365-99-739-1031
Federal Supply Class:
5365
National Item Identification Number:
997391031
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:
| 1541-1117 | K0378 | ROLLS-ROYCE PLC | | 1541-1117 | K1464 | GOODRICH CONTROL SYSTEMS LTD T/A GOODRICH ENGINE CONTROL SYSTEMS | | 1541-1117 | U4287 | ROLLS-ROYCE CONTROLS AND DATA SERVICES LIMITED |
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Techincal Specification:
| CRITICALITY CODE JUSTIFICATION | AARX AND ABHE | | INSIDE DIAMETER | 0.5040 INCHES MINIMUM AND 0.5079 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | DFSM 4080 MFR REF SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL | | OUTSIDE DIAMETER | 0.6299 INCHES MINIMUM AND 0.6378 INCHES MAXIMUM | | OVERALL THICKNESS | 0.118 INCHES MINIMUM AND 0.138 INCHES MAXIMUM | | SURFACE FINISH | 125.0 MICROINCHES LEFT SIDE | | SURFACE FINISH | 250.0 MICROINCHES BORE | | SURFACE FINISH | 250.0 MICROINCHES RIGHT SIDE |
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