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National Stock Number:
4320-00-398-6980
Federal Supply Class:
4320
National Item Identification Number:
003986980
Description:
RING,WEARING
Detail:
A cylindrical item with or without flange(s), designed to be inserted in a pump casing or secured to the impeller of a centrifugal pump. It is used for the purpose of providing a close running clearance between the impeller and casing in order to prevent or overcome leakage due to erosion. It may also be used as a diffuser ring in the suction and discharge throats of valves.
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Manufacturer Information:
| H4320-398-6980 | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG | | H583AMX1 | 16712 | SIEMENS ENERGY, INC. |
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Techincal Specification:
| BODY INSIDE DIAMETER | 7.240 INCHES NOMINAL | | BODY OUTSIDE DIAMETER | 8.375 INCHES NOMINAL | | BODY STYLE | INTERNAL AND EXTERNAL FLANGE | | CENTER FLANGE THICKNESS | 0.500 INCHES NOMINAL | | CORNER SHAPE | SQUARE ALL CORNERS | | END TO FLANGE DISTANCE | 0.500 INCHES NOMINAL | | FLANGE DIAMETER | 8.812 INCHES NOMINAL | | INTERNAL FLANGE INSIDE DIAMETER | 6.000 INCHES NOMINAL | | INTERNAL FLANGE LIP WIDTH | 0.312 INCHES NOMINAL | | INTERNAL FLANGE OUTSIDE DIAMETER | 6.614 INCHES NOMINAL | | INTERNAL FLANGE WIDTH | 0.656 INCHES NOMINAL | | III MATERIAL | COPPER ALLOY 923 | | POSITIONING LUG LENGTH | 0.688 INCHES NOMINAL | | POSITIONING LUG WIDTH | 0.750 INCHES NOMINAL | | PROPRIETARY CHARACTERISTICS | PACS | | OVERALL LENGTH | 1.500 INCHES NOMINAL | | SPECIAL FEATURES | 2ND LUG LOCATED 180 DEG FROM 1ST LUG 0.750 IN. W,0.688 IN. LG | | SURFACE FINISH | 63.0 MICROINCHES OUTSIDE | | SURFACE FINISH | 125.0 MICROINCHES LEFT FACE | | SURFACE FINISH | 32.0 MICROINCHES INSIDE |
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