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National Stock Number:
5330-01-620-0039
Federal Supply Class:
5330
National Item Identification Number:
016200039
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:
| B17045-1 | 04577 | MISSION SYSTEMS ORCHARD PARK INC | | B17045-1 | 99251 | MISSION SYSTEMS DAVENPORT INC. |
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Techincal Specification:
| CROSS-SECTIONAL SHAPE STYLE | SOLID | | MATERIAL | PLASTIC | | PART NAME ASSIGNED BY CONTROLLING AGENCY | RING, BACKUP | | SPECIFICATION/STANDARD DATA | MIL-R-8791 GOVERNMENT STANDARD |
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