PRESSURE RELIEF DEVICE ASSEMBLY. Key specifications include material: STEEL OVERALL, shank_length: 0.145 INCHES MINIMUM AND 0.155 INCHES MAXIMUM IN, overall_length: 0.890 INCHES MINIMUM AND 0.895 INCHES MAXIMUM IN, shank_diameter: 0.196 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN, surface_finish: 125.000 MICROINCHES OVERALL, first_end_style: SQUARE. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 8120-00-079-0544, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.
Verify compatibility with your specific system configuration before ordering.
| material | STEEL OVERALL |
| shank_length | 0.145 INCHES MINIMUM AND 0.155 INCHES MAXIMUM IN |
| overall_length | 0.890 INCHES MINIMUM AND 0.895 INCHES MAXIMUM IN |
| shank_diameter | 0.196 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN |
| surface_finish | 125.000 MICROINCHES OVERALL |
| first_end_style | SQUARE |
| hardness_rating | 58.0 ROCKWELL D MINIMUM AND 63.0 ROCKWELL D MAXIMUM OVERALL |
| special_features | 0.025 TO 0.035 IN RADIUS UNDER SIDE OF SHOULDER ON END OF SHANK IN |
| style_designator | SHOULDER |
| shoulder_diameter | 0.2495 INCHES MINIMUM AND 0.2505 INCHES MAXIMUM IN |
| surface_treatment | PHOSPHATE OVERALL |
| first_end_location | BOTH ENDS |
| NSN | 8120-00-079-0544 |
| MATERIAL | COPPER ALLOY |
| SPECIAL FEATURES | SAFETY DISC ASSY SHALL CONSIST OF A SAFETY NUT, SAFETY DISC AND GASKET SHALL BE SUITABLE FOR USE ON ICC-3AA COMPRESSED GAS (AIR OR NITROGEN) STORAGE CYLINDER AND SHALL BE IN ACCORDANCE WITH SPEC. MIL-V-2, TYPE 1 SAFETY DEVICE. WORKING PRESSURE: 3500 PSI; BURSTING PRESSURE: 5000 PSI PLUS OR MINUS 250 PSI AT 60 DEGRES F; DISC MATERIAL: METAL FRANGIBLE TYPE; SAFETY NUT MATERIAL: BRASS. |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SAFETY NUT & DISC ASSY: CYLINDER NITROGEN SERVICING UNIT |