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National Stock Number:
5365-00-684-7772
Federal Supply Class:
5365
National Item Identification Number:
006847772
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:
| S6135-20184-1 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| OVERALL THICKNESS | 0.058 INCHES MINIMUM AND | | 0.062 INCHES MAXIMUM | | INSIDE DIAMETER | 2.500 INCHES NOMINAL | | OUTSIDE DIAMETER | 2.841 INCHES MINIMUM AND | | 2.843 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-T-6736,TYPE 1,COND N MIL SPEC 1ST MATERIAL RESPONSE OR | | SAE ASSN STD 2ND MATERIAL RESPONSE | | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND | | 33.0 ROCKWELL C MAXIMUM | | SURFACE FINISH | 100.0 MICROINCHES OVERALL | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 78286 | | DESIGN CONTROL REFERENCE | S6135-20184-1 |
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