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National Stock Number:
5365-01-125-6562
Federal Supply Class:
5365
National Item Identification Number:
011256562
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:
| 64351-11174-104 | 54878 | ROTAIR AEROSPACE CORP | | 64351-11174-104 | 55345 | ALAMO AIRCRAFT, LTD. | | 64351-11174-104 | 64084 | PCX AEROSYSTEMS ENFIELD, LLC | | 64351-11174-104 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM | | INSIDE DIAMETER | 1.660 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6415 ASSN STD SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL COMP 4340 | | OUTSIDE DIAMETER | 1.994 INCHES MINIMUM AND 1.996 INCHES MAXIMUM | | OVERALL THICKNESS | 0.089 INCHES MINIMUM AND 0.091 INCHES MAXIMUM | | SURFACE FINISH | 125.0 MICROINCHES OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE | | SURFACE TREATMENT | OXIDE |
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