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) | 01-443-9866 (014439866) |
| NCB Code | USA (01) |
| Manufacturer | Howell Laboratories Inc, Circor Aerospace Inc |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 4875 | howell laboratories inc | valve safety relief | RFQ |
| 4870 ITEM 67 | howell laboratories inc | valve safety relief | RFQ |
| D559T1-8M-1 | circor aerospace inc | valve safety relief | RFQ |
| 4875-G501 | howell laboratories inc | valve safety relief | RFQ |
| 4875C-G501 | howell laboratories inc | valve safety relief | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| MRC | Decoded Requirement | Clear Text Reply |
| AQLR | Valve Operation Method | AUTOMATIC |
| AWLS | Connection Type | THREADED EXTERNAL PIPE 1ST END |
| AGAV | End Item Identification | NIMITZ CLASS CVN |
| AEQJ | Minimum Operating Temp | -40.0 DEG FAHRENHEIT |
| STYL | Style Designator | STRAIGHT THRU |
| AEHZ | Maximum Operating Temp | 250.0 DEG FAHRENHEIT SINGLE RESPONSE |
| THSD | Thread Series Designator | NPT 1ST END |
| AAJF | Thread Direction | RIGHT-HAND 1ST END |
| TMQY | Furnished Items And Quantity | 1 DEFLECTOR CAP |
| CQJX | Nominal Thread Size | 1.000 INCHES 1ST END |
| ADSU | Disk Loading Method | SPRING |
| CSDC | Opening Pressure Setting | 1.0 POUNDS PER SQUARE INCH |
| MATT | Material | STEEL COMP 316 BODY |
| AHNC | Connection Style | PLAIN (PIPE) 1ST END |
| CQGM | Maximum Operating Pressure | 200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| Relevant Components for NSN - 4820-01-443-9866, 4820014439866 | ||||
| 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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