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National Stock Number:
5365-00-101-8291
Federal Supply Class:
5365
National Item Identification Number:
001018291
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:
| 65106-11137-101 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| FSC APPLICATION DATA | DAMPER ASSY,ROTARY WING HEAD,HELICOPTER | | INSIDE DIAMETER | 2.917 INCHES MINIMUM AND 2.927 INCHES MAXIMUM | | OUTSIDE DIAMETER | 3.375 INCHES NOMINAL | | OVERALL THICKNESS | 0.039 INCHES MINIMUM AND 0.044 INCHES MAXIMUM | | MATERIAL | STEEL COMP 301 OR STEEL COMP 302 | | SURFACE FINISH | 90.0 MICROINCHES BORE | | SURFACE FINISH | 90.0 MICROINCHES RIGHT SIDE | | SURFACE FINISH | 90.0 MICROINCHES LARGEST OUTSIDE DIAMETER | | SURFACE FINISH | 90.0 MICROINCHES LEFT SIDE | | SURFACE TREATMENT | PASSIVATE |
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