NSN 4820-00-256-6545
Part Details | FLUID PRESSURE REGULATING VALVE
4820-00-256-6545 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, 4820-00-256-6545, 00-256-6545, 4820002566545, 002566545
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | MAR 24, 1971 | 00-256-6545 | 27565 ( VALVE, REGULATING, FLUID PRESSURE ) |
REFERENCE DRAWINGS & PICTURES
STRAIGHT THRU
SOCKET
SOCKET
SOCKET
SOCKET
Cross Reference | NSN 4820-00-256-6545
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| MILV2042 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
Technical Data | NSN 4820-00-256-6545
| 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 |
| SPECIAL FEATURES | MAGNETIC PERMEABILITY SHALL BE LESS THAN 1.2 BEFORE FABRICATION AND NOT GREATER THAN 2.0 AFTER FABRICATION AS MEASURED IN A 200 OERSTED FIELD |
| 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 | UNTHREADED INTERNAL TUBE |
| FIRST END STYLE DESIGNATOR | 1 SOCKET |
| FIRST END OUTSIDE DIAMETER TUBE ACCOMMODATED | 1.250 INCHES NOMINAL |
| SECOND END RELATIONSHIP WITH FIRST END | IDENTICAL |
| BODY STYLE | STRAIGHT THRU |
| 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 |