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National Stock Number:
5330-01-568-0710
Federal Supply Class:
5330
National Item Identification Number:
015680710
Description:
BACK-UP RING,PREFORMED PACKING
Detail:
A CIRCULAR SHAPED ITEM WITH AN APERTURE MANUFACTURED TO PREDETERMINED DIMENSIONS, CONSTRUCTED WITH A RECTANGULAR CROSS SECTION THAT MAY BE SOLID, WITH JOINT, OR IN A HELICAL FORM THAT FACILITATES SPIRAL WRAP INSTALLATION. IT PREVENTS SEAL EXTRUSION UNDER PRESSURE AND IS DESIGNED TO FIT ON THE DOWN-PRESSURE SIDE OF A GLAND GROOVE WITH A PACKING, PREFORMED OR O-RING.
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Manufacturer Information:
| 39724-1 | 91816 | CIRCOR AEROSPACE, INC. | | P21-452ITEM5 | 91816 | CIRCOR AEROSPACE, INC. |
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Techincal Specification:
| III MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE | | PART NAME ASSIGNED BY CONTROLLING AGENCY | BACKUP RING | | PROPRIETARY CHARACTERISTICS | PACS |
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