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National Stock Number:
5330-01-553-1763
Federal Supply Class:
5330
National Item Identification Number:
015531763
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:
| 551-6685221 PC NO.15 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 551-6685221 PC NO.15CP | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG | | 551-6685222 PC NO.15CP | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG | | CD-023-38-15CP | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG | | CD-023-39-15CP | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG | | 551-6685222 PC NO.15 | 53711 | NAVAL SEA SYSTEMS COMMAND | | M8791/1-235CP | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG | | MS27595-235CP | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | M8791/1-235 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| CENTER HOLE DIAMETER | 3.130 INCHES NOMINAL | | CROSS-SECTIONAL HEIGHT | 0.119 INCHES NOMINAL | | CRITICALITY CODE JUSTIFICATION | ZZZW | | CROSS-SECTIONAL SHAPE STYLE | SOLID | | DEPARTURE FROM CITED DOCUMENT | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D | | MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE | | PERIPHERAL DIAMETER | 3.368 INCHES NOMINAL |
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