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National Stock Number:
5365-00-946-5285
Federal Supply Class:
5365
National Item Identification Number:
009465285
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:
| 65351-11022-101 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| FSC APPLICATION DATA | 1. MAIN GEAR BOX,HELICOPTER | | HARDNESS RATING | 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM | | INSIDE DIAMETER | 10.508 INCHES MINIMUM AND 10.510 INCHES MAXIMUM | | OUTSIDE DIAMETER | 11.100 INCHES NOMINAL | | OVERALL THICKNESS | 0.685 INCHES MINIMUM AND 0.690 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL COMP 4340 | | SURFACE FINISH | 90.0 MICROINCHES LARGEST OUTSIDE DIAMETER | | SURFACE FINISH | 90.0 MICROINCHES LEFT SIDE | | SURFACE FINISH | 90.0 MICROINCHES BORE | | SURFACE FINISH | 90.0 MICROINCHES RIGHT SIDE | | SURFACE TREATMENT | OXIDE |
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