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National Stock Number:
5330-01-541-9933
Federal Supply Class:
5330
National Item Identification Number:
015419933
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:
| LS35056-025 | 98897 | LOCKHEED MARTIN CORP |
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Techincal Specification:
| CROSS-SECTIONAL HEIGHT | 0.375 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | SOLID | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE | | PERIPHERAL DIAMETER | 1.305 INCHES NOMINAL | | SPECIAL FEATURES | FOUR NOTCHES EQUALLY SPACED ON BACK AND FRONT SIDE |
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