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National Stock Number:
5330-01-553-4644
Federal Supply Class:
5330
National Item Identification Number:
015534644
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:
| 54-94-7431MR | 96169 | ELECTRIC BOAT CORPORATION | | 54-94-7431MRCP | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG | | 803-INC6701-A ITEM NO.21CP | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG | | CD-023-42-21CP | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG | | 803-INC6701-A ITEM NO.12 | 53711 | NAVAL SEA SYSTEMS COMMAND | | MS28774-431 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | MS28774-431CP | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG |
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Techincal Specification:
| CENTER HOLE DIAMETER | 5.301 INCHES NOMINAL | | CROSS-SECTIONAL HEIGHT | 0.110 INCHES NOMINAL | | CRITICALITY CODE JUSTIFICATION | ZZZW | | CROSS-SECTIONAL SHAPE STYLE | SINGLE TURN SPIRAL | | DEPARTURE FROM CITED DOCUMENT | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D | | MATERIAL | PLASTIC | | PERIPHERAL DIAMETER | 5.773 INCHES NOMINAL | | SPECIAL FEATURES | MATERIAL IS TETRAFLUOROETHYLENE |
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