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National Stock Number:
5330-01-589-6886
Federal Supply Class:
5330
National Item Identification Number:
015896886
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:
| BACR12BM228 | 81205 | THE BOEING COMPANY | | BACR12BM228 | Z0HA9 | BOEING DEFENCE AUSTRALIA |
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Techincal Specification:
| CENTER HOLE DIAMETER | 2.249 INCHES MINIMUM AND 2.251 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | SINGLE TURN SPIRAL | | CROSS-SECTIONAL HEIGHT | 0.118 INCHES MINIMUM AND 0.120 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | BMS8-121, TYPE 1, CLASS 1, GRADE B MFR REF SINGLE MATERIAL RESPONSE | | MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE |
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