The DIAPHRAGM,VALVE,FLAT is a the manufacturer industrial component. Key specifications include material: RUBBER SEAT, connection_type: THREADED INTERNAL TUBE ALL ENDS, connection_style: FLARE (TUBE) ALL ENDS, style_designator: ANGLE, mounting_position: HORIZONTAL, surface_treatment: ANODIZE. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-013-8904, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.
Verify compatibility with your specific system configuration before ordering.
| material | RUBBER SEAT |
| connection_type | THREADED INTERNAL TUBE ALL ENDS |
| connection_style | FLARE (TUBE) ALL ENDS |
| style_designator | ANGLE |
| mounting_position | HORIZONTAL |
| surface_treatment | ANODIZE |
| disk_loading_method | SPRING |
| minimum_operating_temp | -67.0 FAHRENHEIT DEGF |
| valve_operation_method | AUTOMATIC |
| renewable_seat_ring_type | PRESSED-IN |
| part_name_assigned_by_controlling_agency | VALVE,CHECK, AIRCRAFT FUEL SYSTEM AND VALVE,FUEL CHECK, LOW PRESSURE FLARED TUBE CONNECTION |
| nominal_outside_diameter_tube_accommodated | 1.500 INCHES ALL ENDS IN |
| NSN | 4820-00-013-8904 |
| DISK LOADING METHOD | SPRING |
| OPERATING PRESSURE | 60.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| MEDIA FOR WHICH DESIGNED | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| MATERIAL | ALUMINUM ALLOY SEAT |
| NOMINAL THREAD SIZE | 2.500 INCHES ALL ENDS IN |
| SURFACE TREATMENT | ANODIZE |
| MATERIAL | ALUMINUM ALLOY BODY |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT (UNJ) ALL ENDS |
| THREAD QUANTITY PER INCH | 12 ALL ENDS |
| STYLE DESIGNATOR | STRAIGHT THRU |