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National Stock Number:
5330-01-567-8261
Federal Supply Class:
5330
National Item Identification Number:
015678261
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:
| M1420-236-EL | 0ASY6 | DERBYSHIRE MARINE PRODUCTS, LLC | | M1420-236-EL | 71905 | DERBYSHIRE MACHINE & TOOL CO | | M4110-2713 PC NO. 12 | 0ASY6 | DERBYSHIRE MARINE PRODUCTS, LLC | | M4110-2713 PC NO. 12 | 71905 | DERBYSHIRE MACHINE & TOOL CO |
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Techincal Specification:
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BACK-UP RING | | MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE |
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