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National Stock Number:
5330-01-528-0330
Federal Supply Class:
5330
National Item Identification Number:
015280330
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:
| 66-32066 | 81205 | THE BOEING COMPANY |
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Techincal Specification:
| CENTER HOLE DIAMETER | 0.980 INCHES MINIMUM AND 0.990 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | SOLID | | CROSS-SECTIONAL HEIGHT | 0.080 INCHES NOMINAL | | MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE |
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