| Item Name | Valve Relief Pressure And Temper |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-317-6865 (013176865) |
| NCB Code | USA (01) |
| Manufacturer | United Technologies Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| ACLH | First End Outside Diameter Tube Accommodated | 0.250 INCHES NOMINAL |
| ACLR | Second End Relationship With First End | IDENTICAL |
| ACTE | First End Seat Angle In Deg | 37 |
| ACKL | Media For Which Designed | AIR |
| ADQU | Flow Control Device | PISTON, FREE TYPE |
| ADQZ | End Connection Quantity | 2 |
| MRC | Decoded Requirement | Clear Text Reply |
| ACLK | First End Thread Class | 3A |
| ACLL | First End Thread Direction | RIGHT-HAND |
| AEVX | Temp Adjustability | NOT ADJUSTABLE |
| ACSH | Seat Material | STEEL, AMS 5354 |
| AGAV | End Item Identification | TF30-P103,P107,P109 ENGINES/ACFT,TYPE F-111/T.O. 6J15-20-3-3 |
| AAFZ | Body Material | STEEL, AMS 5354 |
| FEAT | Special Features | ADDITIONAL FLOW CONTROL DEVICE: SPRING; THIS ITEM SUPERSEDES P/N 538563; CONSISTS OF: HOUSING P/N 2181683; PISTON,P/N 2181690; SEAL RING,P/N 2181696; SEAT,P/N 2183561; 2 SCREWS,P/N 490160; SPRING-COMPRES- SION; SEAT,HELICAL COMPRESSION SPRING,P/N 2181695; WASHER-KEY,P/N 458024;VALVE DISK,P/N 2181691 |
| ACKM | First End Connection Type | THREADED EXTERNAL TUBE |
| ACKN | First End Style Designator | FLARED |
| Relevant Components for NSN - 4820-01-317-6865, 4820013176865 | ||||
| 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) | |
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