| Item Name | Valve Safety Relief |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-222-7812 (012227812) |
| NCB Code | USA (01) |
| Manufacturer | Circor Aerospace Inc, Raytheon Company |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A 1ST END |
| AAJD | THREAD CLASS | 3B 2ND END |
| AAJF | THREAD DIRECTION | RIGHT-HAND ALL ENDS |
| ADQU | FLOW CONTROL DEVICE | DISK |
| AEHZ | MAXIMUM OPERATING TEMP | 250.0 DEG FAHRENHEIT SINGLE RESPONSE |
| AHNC | CONNECTION STYLE | FLARE(TUBE) 2ND END |
| AHNC | CONNECTION STYLE | PLAIN (TUBE) 1ST END |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| AWLS | CONNECTION TYPE | THREADED EXTERNAL TUBE 1ST END |
| AWLS | CONNECTION TYPE | THREADED INTERNAL TUBE 2ND END |
| CMLP | THREAD QUANTITY PER INCH | 18 ALL ENDS |
| CQJX | NOMINAL THREAD SIZE | 0.438 INCHES ALL ENDS |
| CSDC | OPENING PRESSURE SETTING | 14.0 POUNDS PER SQUARE INCH |
| CWFD | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.250 INCHES 2ND END |
| MATT | MATERIAL | ALUMINUM ALLOY 2024 BODY |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-25/6 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| MEDA | MEDIA FOR WHICH DESIGNED | ACETYLENE 2ND RESPONSE |
| MEDA | MEDIA FOR WHICH DESIGNED | AIR 1ST RESPONSE |
| MEDA | MEDIA FOR WHICH DESIGNED | HYDROGEN 4TH RESPONSE |
| MEDA | MEDIA FOR WHICH DESIGNED | REFRIGERANT 12 3RD RESPONSE |
| SFTT | SURFACE TREATMENT | ANODIZE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE |
| STYL | STYLE DESIGNATOR | STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY. |
| THSD | THREAD SERIES DESIGNATOR | UNS ALL ENDS |
| Components Related to NSN - 4820-01-222-7812, 4820012227812 | ||||
| 4820-00-287-3034 (4820002873034) | 4820-01-271-7886 (4820012717886) | 4820-01-714-5468 (4820017145468) | 4810-00-936-0709 (4810009360709) | |
| 4820-01-190-3734 (4820011903734) | 4820-01-482-1507 (4820014821507) | 4820-00-145-2608 (4820001452608) | 4820-01-438-4316 (4820014384316) | |
| 4820-00-035-7597 (4820000357597) | 4820-00-417-3438 (4820004173438) | 4820-01-027-8834 (4820010278834) | 4820-01-301-8497 (4820013018497) | |
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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