| Item Name | Valve Check |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-518-3993 (005183993) |
| NCB Code | USA (00) |
| Manufacturer | Bell Helicopter Textron Inc, Crissair Inc, Circor Aerospace Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A 1ST END |
| AAJF | THREAD DIRECTION | RIGHT-HAND 1ST END |
| ADQU | FLOW CONTROL DEVICE | POPPET |
| ADSU | DISK LOADING METHOD | SPRING |
| AHNC | CONNECTION STYLE | FLARED (TUBE) 1ST END |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| AWLS | CONNECTION TYPE | THREADED EXTERNAL TUBE 1ST END |
| BBJX | MOUNTING POSITION | HORIZONTAL OR VERTICAL |
| CMLP | THREAD QUANTITY PER INCH | 18 1ST END |
| CQJX | NOMINAL THREAD SIZE | 0.562 INCHES 1ST END |
| CQRB | SEAT ANGLE | 37.0 DEGREES 1ST END |
| CWFD | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.375 INCHES 1ST END |
| MATT | MATERIAL | ALUMINUM ALLOY OVERALL |
| MEDA | MEDIA FOR WHICH DESIGNED | FUEL/OIL,HYDROCARBON SINGLE RESPONSE |
| STYL | STYLE DESIGNATOR | STRAIGHT THRU |
| THSD | THREAD SERIES DESIGNATOR | UNF 1ST END |
| Components Related to NSN - 4820-00-518-3993, 4820005183993 | ||||
| 4820-01-373-8958 (4820013738958) | 4820-01-129-8013 (4820011298013) | 4820-01-440-6910 (4820014406910) | 4810-01-523-9395 (4810015239395) | |
| 4810-01-541-8177 (4810015418177) | 4810-01-480-3370 (4810014803370) | 4820-01-190-5941 (4820011905941) | 4820-01-130-0014 (4820011300014) | |
| 4820-01-365-6951 (4820013656951) | 4820-01-414-5558 (4820014145558) | 4820-01-319-9150 (4820013199150) | 4820-00-488-8376 (4820004888376) | |
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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