The Valve,check, cataloged under National Stock Number 4820-00-512-5926, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Rego Co a Marmon Group Co. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-512-5926 |
| Primary Part Number | 4343A |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Rego Co a Marmon Group Co |
| Status | ACTIVE |
| Nominal Outside Diameter Tube Accommodated | 0.188 INCHES FIRST END IN |
| Media for Which Designed | OXYGEN, GASEOUS SINGLE RESPONSE |
| Nominal Thread Size | 0.375 INCHES FIRST END IN |
| Operating Pressure | 1800.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Material | ALUMINUM ALLOY BODY |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Flow Control Device | CONE |
| Valve Operation Method | AUTOMATIC |
| Thread Class | 3A FIRST END A |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Thread Series Designator | UNF FIRST END |
| Connection Style | PLAIN (TUBE) FIRST END |
| Style Designator | ANGLE |
| Thread Direction | RIGHT-HAND FIRST END |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 4343A | Rego Co a Marmon Group Co (USA) |
| 9816SPECMILV5027 | Ingersoll-Rand Company Dba Ingersoll-Rand (USA) |
| 4343 | Rego Co a Marmon Group Co (USA) |
| AN6017-1 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
| 3273 | Royle John and Sons (USA) |
| 4343B | Rego Co a Marmon Group Co (USA) |
| 2001206-4 | Carruthers and Fernandez Inc (USA) |
| 2001206-4 | Airborne Equipment Ltd (USA) |
| 223A3CCD | Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA) |
| 3273 | Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging (USA) |
NSN 4820-00-512-5926 is a Valve,check, manufactured by Rego Co a Marmon Group Co, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-512-5926 has 10 cross-referenced part numbers: 4343A (Rego Co a Marmon Group Co), 9816SPECMILV5027 (Ingersoll-Rand Company Dba Ingersoll-Rand), 4343 (Rego Co a Marmon Group Co), AN6017-1 (Aeronautical Standards Group Dept of Navy and Air Force), 3273 (Royle John and Sons) and 5 more.
There are 12 known substitutes for 4820-00-512-5926: 4320-00-019-0699, 9150-00-269-8255, 3825-00-355-1060 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 4343A: Nominal Outside Diameter Tube Accommodated: 0.188 INCHES FIRST END IN; Media for Which Designed: OXYGEN, GASEOUS SINGLE RESPONSE; Nominal Thread Size: 0.375 INCHES FIRST END IN; Operating Pressure: 1800.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 14 total characteristics are documented in the Federal Logistics Information System.