The Valve,check, cataloged under National Stock Number 4820-00-204-3371, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Kennedy Valve Div of Itt Grinnell Valve Co Inc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-204-3371 |
| Primary Part Number | BD513 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Kennedy Valve Div of Itt Grinnell Valve Co Inc |
| Status | ACTIVE |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Nominal Pipe Size Accommodated | 0.750 INCHES FIRST END IN |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Flow Control Device | DISK |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Operating Pressure | 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Style Designator | STRAIGHT THRU |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Material | COPPER ALLOY OVERALL |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Thread Series Designator | NPT ALL ENDS |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-204-3371 is a Valve,check, manufactured by Kennedy Valve Div of Itt Grinnell Valve Co Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-204-3371 has 3 cross-referenced part numbers: BD513 (Kennedy Valve Div of Itt Grinnell Valve Co Inc), 2V352 (Kersey / American Lafrance a Div of Figgie International Inc), BD565 (Kennedy Valve Div of Itt Grinnell Valve Co Inc).
There is 1 known substitute for 4820-00-204-3371: 4820-00-288-6678. Verify interchangeability with system specifications before substitution.
Key specifications for BD513: Connection Type: THREADED INTERNAL PIPE ALL ENDS; Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS; Nominal Pipe Size Accommodated: 0.750 INCHES FIRST END IN; Thread Direction: RIGHT-HAND ALL ENDS. 15 total characteristics are documented in the Federal Logistics Information System.