NSN 4820-00-256-6543
Part Details | FLUID PRESSURE REGULATING VALVE
4820-00-256-6543 A valve designed to automatically maintain within close limits a predetermined outlet pressure which may be adjustable within a specified range regardless of the higher fluctuating or constant inlet pressure. It is designed for use with compressed gas(es) and various liquids and may include gauges. It may be inline or cartridge (manifold) design. Excludes REGULATOR, PRESSURE, MEDICAL GAS ADMINISTRATION APPARATUS; REGULATOR, OXYGEN, BAROMETRIC CONTINUOUS FLOW; REGULATOR, OXYGEN DEMAND; REGULATOR, OXYGEN DILUTER DEMAND; and valve(1), fluid pressure regulating, aircraft.
Alternate Parts: MILV2042, 30812076, 4363 12IN, 436-3 1-2IN, 30812260, 4820-00-256-6543, 00-256-6543, 4820002566543, 002566543
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | MAR 24, 1971 | 00-256-6543 | 27565 ( VALVE, REGULATING, FLUID PRESSURE ) |
REFERENCE DRAWINGS & PICTURES
STRAIGHT THRU
PLAIN
ROUND W/ BOLT HOLES
PLAIN
ROUND W/ BOLT HOLES
PLAIN
ROUND W/ BOLT HOLES
PLAIN
Cross Reference | NSN 4820-00-256-6543
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| MILV2042 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
| 30812076 | 03847 | WARREN CONTROLS, INC. |
| 436-3 1-2IN | 03847 | WARREN CONTROLS, INC. |
| 30812260 | 03847 | WARREN CONTROLS, INC. |
Technical Data | NSN 4820-00-256-6543
| Characteristic | Specifications |
|---|---|
| BODY MATERIAL | BRONZE, ASTM B61 |
| TEMP RATING | 165.0 DEG FAHRENHEIT NOMINAL |
| MAXIMUM INLET PRESSURE RATING | 150.0 POUNDS PER SQUARE INCH |
| OUTLET PRESSURE RANGE | +25.0 TO +60.0 POUNDS PER SQUARE INCH |
| FILTER | NOT INCLUDED |
| NONDEFINITIVE SPEC/STD DATA | 2 TYPE |
| SEAT MATERIAL | NICKEL COPPER ALLOY, QQ-N-288, COMP A |
| STEM MATERIAL | NICKEL COPPER ALLOY, QQ-N-286, CLASS A |
| FLOW CONTROL DEVICE | DISK, FLAT |
| FLOW CONTROL DEVICE MATERIAL | PLASTIC, POLYURETHANE |
| END CONNECTION QUANTITY | 2 |
| FIRST END CONNECTION TYPE | PLAIN FACE FLANGE |
| FIRST END STYLE DESIGNATOR | PLAIN |
| FIRST END FLANGE SHAPE STYLE | ROUND W/ BOLT HOLES |
| FIRST END BOLT HOLE QUANTITY | 8 |
| FIRST END FLANGE OUTSIDE DIAMETER | 7.188 INCHES NOMINAL |
| FIRST END FLANGE THICKNESS | 0.500 INCHES NOMINAL |
| FIRST END BOLT HOLE DIAMETER | 0.562 INCHES NOMINAL |
| FIRST END BOLT CIRCLE DIAMETER | 6.062 INCHES NOMINAL |
| SECOND END RELATIONSHIP WITH FIRST END | IDENTICAL |
| BODY STYLE | STRAIGHT THRU |
| FACE TO FACE DISTANCE | 11.563 INCHES MINIMUM AND 11.687 INCHES MAXIMUM |
| MEDIA FOR WHICH DESIGNED | WATER, SALT |
| RENEWABLE SEAT RING TYPE | E ANY ACCEPTABLE |
| REGULATION TYPE | MANUAL SINGLE STAGE |
| MANUAL CONTROL METHOD | SCREW |
| VALVE STEM DESIGN | SINGLE SEAT |
| VALVE LOADING METHOD | SPRING |