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National Stock Number:
5330-01-088-5190
Federal Supply Class:
5330
National Item Identification Number:
010885190
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:
| 910778 | 1CU83 | GIGLI ENTERPRISES, INC. | | 910778 | 90005 | PUROLATOR FACET INC. |
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Techincal Specification:
| CENTER HOLE DIAMETER | 1.015 INCHES MINIMUM AND 1.017 INCHES MAXIMUM | | CROSS-SECTIONAL HEIGHT | 0.045 INCHES MINIMUM AND 0.052 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | SINGLE TURN SPIRAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE | | III MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE | | PART NAME ASSIGNED BY CONTROLLING AGENCY | RING-BACKUP | | PERIPHERAL DIAMETER | 1.251 INCHES MINIMUM AND 1.257 INCHES MAXIMUM | | PROPRIETARY CHARACTERISTICS | PACS |
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