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National Stock Number:
5330-01-501-1789
Federal Supply Class:
5330
National Item Identification Number:
015011789
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:
| 8-233N0300-90 | 0KNF3 | GULF COAST SEAL LTD. |
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Techincal Specification:
| CENTER HOLE DIAMETER | 2.881 INCHES NOMINAL | | CROSS-SECTIONAL HEIGHT | 0.050 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | CONTOURED FACE SOLID | | HARDNESS RATING | 90.0 SHORE DUROMETER A NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | (02697)N0300 MFR REF SINGLE MATERIAL RESPONSE | | MATERIAL | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR | | PART NAME ASSIGNED BY CONTROLLING AGENCY | RING,BACKING | | PERIPHERAL DIAMETER | 3.117 INCHES NOMINAL | | SPECIAL FEATURES | E-NSN ISIL | | TEMP RATING | -65.0 FAHRENHEIT AND 250.0 FAHRENHEIT |
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