AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Valve Safety Relief |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-428-6423 (014286423) |
| NCB Code | USA (01) |
| Manufacturer | Griswold Industries Co |
| MRC | Criteria | Characteristic |
|---|---|---|
| STYL | Style Designator | STRAIGHT THRU FLANGED ENDS NOTE:TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY. |
| CWCK | Nominal Thickness | 0.500 INCHES ALL ENDS |
| CWCD | Nominal Outside Diameter | 6.630 INCHES ALL ENDS |
| ADSU | Disk Loading Method | SPRING |
| CWDF | Flange Face Design | PLAIN ALL ENDS |
| ARKN | Flange Shape | ROUND WITH HOLES ALL ENDS |
| AWLS | Connection Type | FLANGE ALL ENDS |
| AECS | Bolt Hole Quantity | 8 ALL ENDS |
| AGAV | End Item Identification | MODEL 45120 |
| CWCT | Bolt Circle Nominal Diameter | 5.500 INCHES ALL ENDS |
| CCFG | Valve Size | 3.000 INCHES |
| CWCF | Face To Face Distance | 12.000 INCHES |
| CQCY | Adjustable Pressure Range | +10.0/+100.0 POUNDS PER SQUARE INCH |
| MATT | Material | COPPER ALLOY BODY |
| TMQY | Furnished Items And Quantity | 1 STRAINER |
| CWCQ | Bolt Hole Nominal Diameter | 0.563 INCHES ALL ENDS |
| MRC | Decoded Requirement | Clear Text Reply |
| AQLR | Valve Operation Method | AUTOMATIC |
| MATT | Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| ADSR | Bonnet Type | INSIDE SPRING |
| ADST | Bonnet Attachment Method | UNION |
| Relevant Components for NSN - 4820-01-428-6423, 4820014286423 | ||||
| 4810-00-872-2016 (4810008722016) | 4810-01-701-8537 (4810017018537) | 4820-01-147-9334 (4820011479334) | 4820-01-654-7545 (4820016547545) | |
| 4820-01-701-6726 (4820017016726) | 4820-01-310-4503 (4820013104503) | 4820-01-346-3872 (4820013463872) | 4820-01-477-2791 (4820014772791) | |
| 4810-01-665-1605 (4810016651605) | 4820-01-487-1839 (4820014871839) | 4820-01-528-2828 (4820015282828) | 4820-01-340-1265 (4820013401265) | |
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