The Valve,check, cataloged under National Stock Number 4820-00-446-3506, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is William Powell Company, the Dba Powell Valve Div the Starflo Corporation. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 19 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-446-3506 |
| Primary Part Number | 590-3/8IN |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
| Status | ACTIVE |
| Disk Loading Method | WEIGHT |
| Mounting Position | HORIZONTAL |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Material | COPPER ALLOY 922 SEAT |
| Material Document and Classification | ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Operating Pressure | 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Nominal Thread Size | 0.375 INCHES ALL ENDS IN |
| Thread Series Designator | NPT ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Material | COPPER ALLOY 922 BODY |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Material Document and Classification | ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Flow Control Device | BALL |
| Style Designator | STRAIGHT THRU |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Maximum Operating Temp | 550.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 78018 | Aqua-Chem Inc Cleaver-Brooks Div (USA) |
| 3-1409CPC52 | Aqua-Chem Inc Cleaver-Brooks Div (USA) |
| 3-1569BPC52 | Aqua-Chem Inc Cleaver-Brooks Div (USA) |
| 904142 | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
| 3-1696APC57 | Aqua-Chem Inc Cleaver-Brooks Div (USA) |
| 3-1601APC57 | Aqua-Chem Inc Cleaver-Brooks Div (USA) |
| 416-3-8-200 | Lunkenheimer Co (USA) |
| 590 | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| 416-3-8-200 | Markey Machine Llc Div Markey Machine (USA) |
| 904142 | Aqua-Chem Inc Cleaver-Brooks Div (USA) |
| 590-3/8IN PRIMARY | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| 416 | Lunkenheimer Co (USA) |
| 3-1409DPC52 | Aqua-Chem Inc Cleaver-Brooks Div (USA) |
| 3-1569APC52 | Aqua-Chem Inc Cleaver-Brooks Div (USA) |
| 3-1601BPC57 | Aqua-Chem Inc Cleaver-Brooks Div (USA) |
| 3-1425APC57 | Aqua-Chem Inc Cleaver-Brooks Div (USA) |
| 78018 | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
| 3-1696BPC57 | Aqua-Chem Inc Cleaver-Brooks Div (USA) |
| 3-1425BPC57 | Aqua-Chem Inc Cleaver-Brooks Div (USA) |
NSN 4820-00-446-3506 is a Valve,check, manufactured by William Powell Company, the Dba Powell Valve Div the Starflo Corporation, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-446-3506 has 19 cross-referenced part numbers: 78018 (Aqua-Chem Inc Cleaver-Brooks Div), 3-1409CPC52 (Aqua-Chem Inc Cleaver-Brooks Div), 3-1569BPC52 (Aqua-Chem Inc Cleaver-Brooks Div), 904142 (Aqua-Chem, Inc. Dba Aqua-Chem Inc), 3-1696APC57 (Aqua-Chem Inc Cleaver-Brooks Div) and 14 more.
There are 5 known substitutes for 4820-00-446-3506: 5120-00-224-2514, 5330-01-035-0958, 5962-01-119-2962 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 590-3/8IN: Disk Loading Method: WEIGHT; Mounting Position: HORIZONTAL; Thread Direction: RIGHT-HAND ALL ENDS; Media for Which Designed: STEAM FIRST RESPONSE. 20 total characteristics are documented in the Federal Logistics Information System.