| Item Name | Valve Safety Relief |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-273-0493 (012730493) |
| NCB Code | USA (01) |
| Manufacturer | Nacco Materials Handling Group Inc, Rego Co |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJF | THREAD DIRECTION | RIGHT-HAND ALL ENDS |
| ADQU | FLOW CONTROL DEVICE | DISK |
| AEHZ | MAXIMUM OPERATING TEMP | 165.0 DEG FAHRENHEIT SINGLE RESPONSE |
| AHNC | CONNECTION STYLE | PLAIN (PIPE) 1ST END |
| AHNC | CONNECTION STYLE | PLAIN,OPTIONAL END(PIPE) 2ND END |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| AWLS | CONNECTION TYPE | THREADED EXTERNAL PIPE 1ST END |
| AWLS | CONNECTION TYPE | THREADED INTERNAL PIPE 2ND END |
| CQJX | NOMINAL THREAD SIZE | 0.250 INCHES ALL ENDS |
| CSDC | OPENING PRESSURE SETTING | 250.0 POUNDS PER SQUARE INCH |
| FEAT | SPECIAL FEATURES | VALVE SIZE IS 0.250 IN. |
| MATT | MATERIAL | COPPER ALLOY BODY |
| MEDA | MEDIA FOR WHICH DESIGNED | AIR 1ST RESPONSE |
| MEDA | MEDIA FOR WHICH DESIGNED | HYDROGEN 2ND RESPONSE |
| MEDA | MEDIA FOR WHICH DESIGNED | NITROGEN,GASEOUS 3RD RESPONSE |
| MEDA | MEDIA FOR WHICH DESIGNED | OXYGEN,GASEOUS 4TH RESPONSE |
| STYL | STYLE DESIGNATOR | STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY. |
| THSD | THREAD SERIES DESIGNATOR | NPT ALL ENDS |
| Relevant Components for NSN - 4820-01-273-0493, 4820012730493 | ||||
| 4810-01-082-6236 (4810010826236) | 4820-01-353-3012 (4820013533012) | 4820-01-343-6188 (4820013436188) | 4820-01-182-0778 (4820011820778) | |
| 4820-01-279-9726 (4820012799726) | 4820-01-650-3218 (4820016503218) | 4820-01-554-6644 (4820015546644) | 4810-01-508-9300 (4810015089300) | |
| 4820-01-050-6401 (4820010506401) | 4820-01-565-3783 (4820015653783) | 4820-01-465-6661 (4820014656661) | 4820-01-316-3323 (4820013163323) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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