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National Stock Number:
5365-00-392-2071
Federal Supply Class:
5365
National Item Identification Number:
003922071
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:
| 2712741 | 05228 | PTI TECHNOLOGIES INC. | | 2712741 | 09790 | EATON AEROSPACE LLC DBA STERER ENGINEERING DIV VALVE & ACTUATOR | | 2712741 | 1PVC5 | VACCO INDUSTRIES |
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Techincal Specification:
| INSIDE DIAMETER | 3.125 INCHES MINIMUM AND 3.127 INCHES MAXIMUM | | OUTSIDE DIAMETER | 3.307 INCHES MINIMUM AND 3.313 INCHES MAXIMUM | | OVERALL THICKNESS | 0.244 INCHES MINIMUM AND 0.248 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 3651 ASSN STD SINGLE MATERIAL RESPONSE | | MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE | | SURFACE FINISH | 125.0 MICROINCHES OVERALL |
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