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National Stock Number:
5365-00-714-8747
Federal Supply Class:
5365
National Item Identification Number:
007148747
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:
| S1510-23459 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| INSIDE DIAMETER | 6.525 INCHES MINIMUM AND 6.535 INCHES MAXIMUM | | OUTSIDE DIAMETER | 7.500 INCHES NOMINAL | | OVERALL THICKNESS | 0.080 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-188729,COND N MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL COMP 4130 | | SPECIAL FEATURES | TWO FLAT SURFACES ON OPPOSITE SIDES OF ID 6.3735 IN. MIN 6.3775 IN. MAX DISTANCE FROM SURFACE TO SURFACE | | SURFACE FINISH | 100.0 MICROINCHES BORE | | SURFACE FINISH | 100.0 MICROINCHES RIGHT SIDE | | SURFACE FINISH | 100.0 MICROINCHES LARGEST OUTSIDE DIAMETER | | SURFACE FINISH | 100.0 MICROINCHES LEFT SIDE |
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