National Stock Number: 4820-01-510-9206
Federal Supply Class: 4820
National Item Identification Number: 015109206
Description: RETAINER,SEAT,VALVE
Detail: AN ITEM OF VARIOUS SHAPES AND CROSS-SECTIONS, THAT MAY BE FLANGED AND THAT IS DESIGNED TO FIT OVER A VALVE SEAT, ALLOWING PROPER POSITIONING OF THE SEAT WITH A FLOW CONTROL DEVICE.
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