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National Stock Number:
5365-00-354-7040
Federal Supply Class:
5365
National Item Identification Number:
003547040
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:
| 1-551 | 16004 | DAVEY COMPRESSOR CO DIV OF KECO INDUSTRIES INC | | 1-551 | 5RQL2 | DRS ENVIRONMENTAL SYSTEMS INC | | A1-551 | 16004 | DAVEY COMPRESSOR CO DIV OF KECO INDUSTRIES INC | | A1-551 | 5RQL2 | DRS ENVIRONMENTAL SYSTEMS INC | | A1-551 | 92878 | HDT EXPEDITIONARY SYSTEMS INC | | 1-551 | 92878 | HDT EXPEDITIONARY SYSTEMS INC |
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Techincal Specification:
| FEATURES PROVIDED | CASEHARDENED | | HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM | | INSIDE DIAMETER | 6.310 INCHES MINIMUM AND 6.320 INCHES MAXIMUM | | OUTSIDE DIAMETER | 7.740 INCHES MINIMUM AND 7.750 INCHES MAXIMUM | | OVERALL THICKNESS | 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM | | MATERIAL | STEEL | | SURFACE FINISH | 9.9 MICROINCHES LEFT SIDE | | SURFACE FINISH | 9.9 MICROINCHES RIGHT SIDE |
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