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National Stock Number:
5330-01-525-4400
Federal Supply Class:
5330
National Item Identification Number:
015254400
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:
| 055-031-55 | 1QXJ8 | SAINT-GOBAIN PERFORMANCE PLASTICS CORP | | 9035C35-8 | 94259 | BECHTEL MARINE PROPULSION CORPORATION |
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Techincal Specification:
| CENTER HOLE DIAMETER | 1.747 INCHES MINIMUM AND 1.753 INCHES MAXIMUM | | CROSS-SECTIONAL THICKNESS | 0.050 INCHES NOMINAL | | CROSS-SECTIONAL HEIGHT | 0.060 INCHES NOMINAL | | SPECIAL FEATURES | MATERIAL IS FURON OMNISEAL, MUST MEET MIL-STD-2041 |
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