| Item Name | Valve Check |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-058-7171 (010587171) |
| NCB Code | USA (01) |
| Manufacturer | Allison Transmission Inc, Rolls Royce Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| ADQU | FLOW CONTROL DEVICE | POPPET |
| ADSU | DISK LOADING METHOD | SPRING |
| ADZH | RENEWABLE SEAT RING TYPE | PRESSED-IN |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| BBJX | MOUNTING POSITION | VERTICAL |
| CRTL | CRITICALITY CODE JUSTIFICATION | FEAT AND SPCL |
| FEAT | SPECIAL FEATURES | VALVE SHALL FLOW 29 LBS PER MINUTE WITH 14 PSIG MAX PRESSURE DROP,VALVE OPENING PRESSURE SHALL NOT EXCEED 5.0 PSIG AND SHALL BE FULLY CLOSED /ZERO LEAKAGE/ AT 3.0 PSIG WHENACTUATED IN THE CLOSING DIRECTION |
| SPCL | SPECIAL TEST FEATURES | ORIENT VALVE WITH LARGE END DOWN AND APPLY TEST PRESSURE TO SMALL END OF VALVE USING MIL-L-7808 OIL AT 180 DEG F /OR EQUIVALENT/ FOR ALL TEST CONDITIONS |
| Relevant Components for NSN - 4820-01-058-7171, 4820010587171 | ||||
| 4820-01-695-0145 (4820016950145) | 4820-01-596-1771 (4820015961771) | 4810-01-187-3363 (4810011873363) | 4810-01-523-6894 (4810015236894) | |
| 4820-00-707-0356 (4820007070356) | 4820-01-568-0815 (4820015680815) | 4820-01-227-9365 (4820012279365) | 4820-01-104-8145 (4820011048145) | |
| 4820-01-299-5713 (4820012995713) | 4820-01-640-9566 (4820016409566) | 4810-01-346-0666 (4810013460666) | 4820-01-655-5932 (4820016555932) | |
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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