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National Stock Number:
5365-99-608-5539
Federal Supply Class:
5365
National Item Identification Number:
996085539
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:
| 846-56 | U4271 | ROLLS-ROYCE CONTROLS AND DATA SERVICES LIMITED | | A3-846-56 | U4271 | ROLLS-ROYCE CONTROLS AND DATA SERVICES LIMITED |
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Techincal Specification:
| HARDNESS RATING | 255.0 BRINELL STANDARD MINIMUM AND 321.0 BRINELL STANDARD MAXIMUM | | INSIDE DIAMETER | 1.005 INCHES MINIMUM AND 1.010 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | BS S95 COND D NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL | | OUTSIDE DIAMETER | 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM | | OVERALL THICKNESS | 0.145 INCHES MINIMUM AND 0.155 INCHES MAXIMUM | | SURFACE FINISH | 63.0 MICROINCHES LEFT SIDE | | SURFACE FINISH | 63.0 MICROINCHES RIGHT SIDE | | SURFACE FINISH | 250.0 MICROINCHES BORE |
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