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National Stock Number:
5365-99-606-5858
Federal Supply Class:
5365
National Item Identification Number:
996065858
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:
| B401987 | K0378 | ROLLS-ROYCE PLC | | B401987 ZZ | K0378 | ROLLS-ROYCE PLC | | B401991 | K0378 | ROLLS-ROYCE PLC | | B401991 ZZ | K0378 | ROLLS-ROYCE PLC |
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Techincal Specification:
| HARDNESS RATING | 286.0 BRINELL STANDARD MINIMUM AND 352.0 BRINELL STANDARD MAXIMUM | | INSIDE DIAMETER | 13.800 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | BSEM 528 MFR REF SINGLE MATERIAL RESPONSE OR BSEM 529 MFR REF SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL CORROSION RESISTING | | OUTSIDE DIAMETER | 14.950 INCHES NOMINAL | | OVERALL THICKNESS | 0.035 NOMINAL MILS AND 0.040 NOMINAL CENTIMETERS | | SPECIAL FEATURES | HOLE DATA:20 HOLES 0.281 IN DIA,18 HOLES EQUALLY SPACED ON 14.400 IN. PITCH CIRCLE DIA AND 2 HOLES 10 DEG OFFSET DIAMETRICALLY OPPOSITE | | SURFACE FINISH | 63.0 MICROINCHES LEFT SIDE | | SURFACE FINISH | 63.0 MICROINCHES RIGHT SIDE | | SURFACE FINISH | 250.0 MICROINCHES BORE |
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