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| Item Name | Valve Regulating Temperature |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-499-2508 (014992508) |
| NCB Code | USA (01) |
| Manufacturer | Trac Regulators Inc, Military Specifications |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 40735-401 | trac regulators inc | valve regulating temperature | RFQ |
| MIL-DTL-19772 | military specifications | valve regulating temperature | RFQ |
| 40735-4 ASSY 40735-401 | trac regulators inc | valve regulating temperature | RFQ |
| MIL-V-19772 | military specifications | valve regulating temperature | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAFZ | BODY MATERIAL | BRONZE, ASTM B61 |
| AAQL | BODY STYLE | STRAIGHT THRU |
| ABEP | STEM MATERIAL | STEEL, CORROSION RESISTING, QQ-S-763, CLASS 302, 303, 304, 305, 310, OR 316 |
| ABFF | FURNISHED ITEMS | TAILPIECE W/GROOVES AND UNION NUT |
| ACKM | FIRST END CONNECTION TYPE | UNTHREADED INTERNAL TUBE |
| ACKN | FIRST END STYLE DESIGNATOR | SOCKET W/BRAZING RING |
| ACLH | FIRST END OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.500 INCHES NOMINAL |
| ACLR | SECOND END RELATIONSHIP WITH FIRST END | IDENTICAL |
| ACSH | SEAT MATERIAL | BRONZE, ASTM B61 |
| ADQL | FACE TO FACE DISTANCE | 6.000 INCHES NOMINAL |
| ADQT | PACKING MATERIAL | PLASTIC, POLYPROPYLENE |
| ADQU | FLOW CONTROL DEVICE | PLUNGER WITH 2 DISKS |
| ADQV | FLOW CONTROL DEVICE MATERIAL | STEEL, CORROSION RESISTING, QQ-S-763, CLASS 302, 303, 304, 305, 310, OR 316 |
| ADQZ | END CONNECTION QUANTITY | 2 |
| AEVM | TWO-WAY VALVE ACTION | REVERSE ACTING |
| AEVT | CAPILLARY TUBE LENGTH | 12.000 INCHES NOMINAL |
| AEVV | BULB DIAMETER | 1.875 INCHES NOMINAL |
| AEVX | TEMP ADJUSTABILITY | ADJUSTABLE |
| AEWJ | THERMOSTATIC ELEMENT | LIQUID IMMERSION TYPE |
| AZKQ | TEMP RATING | 60.0 DEG FAHRENHEIT MINIMUM AND 160.0 DEG FAHRENHEIT MAXIMUM |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | 1/2 INCH STYLE A FAILSAFE DOUBLE SEAT REVERSE ACTING THERMOSTATIC TEMPERATURE REGULATOR VALVE ASSEMBLY. |
| FEAT | SPECIAL FEATURES | GTHIS VALVE IS TYPE II DIRECT ACTING CLASS 2 REVERSE ACTING SERIES 250 VALVE IAW MIL DTL-19772. SHOCK AND VIBRATION APPROVAL BY EXTENSION FOR LIGHT WEIGHT GRADE A CLASS I FLEXIBLE MOUNTING FIXTURE 4A. |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | PE II, CLASS 2 TYPE |
| Relevant Components for NSN - 4820-01-499-2508, 4820014992508 | ||||
| 4810-01-693-0546 (4810016930546) | 4810-01-224-8636 (4810012248636) | 4810-00-181-8826 (4810001818826) | 4810-00-533-2538 (4810005332538) | |
| 4820-01-319-3454 (4820013193454) | 4820-01-154-9733 (4820011549733) | 4810-01-176-9496 (4810011769496) | 4820-01-278-5449 (4820012785449) | |
| 4810-01-152-7681 (4810011527681) | 4810-00-127-2787 (4810001272787) | 4820-00-557-7800 (4820005577800) | 4810-01-469-1460 (4810014691460) | |
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