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National Stock Number:
5330-01-501-1385
Federal Supply Class:
5330
National Item Identification Number:
015011385
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:
| 342-7067321-157 | 53711 | NAVAL SEA SYSTEMS COMMAND | | H643-7002-157 | 96169 | ELECTRIC BOAT CORPORATION | | H643-7002A-157 | 96169 | ELECTRIC BOAT CORPORATION | | H6437002A-157 | 96169 | ELECTRIC BOAT CORPORATION |
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Techincal Specification:
| CROSS-SECTIONAL HEIGHT | 0.250 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | SOLID | | MATERIAL DOCUMENT AND CLASSIFICATION | 81364/ASTM-D3293 TY II S/S BY ASTM-D3294 TY II ASSN STD SINGLE MATERIAL RESPONSE | | MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE | | SPECIAL FEATURES | BACK-UP RING FOR O-RING 20.955 IN X 0.275 CROSS SECTION |
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