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 | ||||
| 4810-01-693-0546 (4810016930546) | 4810-01-224-8636 (4810012248636) | 4810-00-181-8826 (4810001818826) | 4810-00-533-2538 (4810005332538) | |
| 4820-01-319-3454 (4820013193454) | 4820-01-154-9733 (4820011549733) | 4810-01-176-9496 (4810011769496) | 4820-01-278-5449 (4820012785449) | |
| 4810-01-152-7681 (4810011527681) | 4810-00-127-2787 (4810001272787) | 4820-00-557-7800 (4820005577800) | 4810-01-469-1460 (4810014691460) | |
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