The Valve,check, cataloged under National Stock Number 4820-01-425-2891, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Davey Compressor Co Div of Keco Industries Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-425-2891 |
| Primary Part Number | 45940 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Davey Compressor Co Div of Keco Industries Inc |
| Status | ACTIVE |
| Connection Style | PLAIN (SCREW-IN CARTRIDGE) ALL ENDS |
| Thread Series Designator | NPT ALL ENDS |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Opening Pressure Setting | 2.0 POUNDS PER SQUARE INCH LBS |
| Style Designator | SCREW-IN CARTRIDGE |
| Disk Loading Method | SPRING |
| Operating Pressure | 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Material | STEEL CORROSION RESISTING BODY |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.125 INCHES ALL ENDS IN |
| Connection Type | THREADED CARTRIDGE ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 45940 | Davey Compressor Co Div of Keco Industries Inc (USA) |
| 45940 | Drs Environmental Systems Inc (USA) |
| 6133E2Y | Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA) |
| 6133E2S | Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA) |
| 45940 | Hdt Expeditionary Systems Inc (USA) |
NSN 4820-01-425-2891 is a Valve,check, manufactured by Davey Compressor Co Div of Keco Industries Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-425-2891 has 5 cross-referenced part numbers: 45940 (Davey Compressor Co Div of Keco Industries Inc), 45940 (Drs Environmental Systems Inc), 6133E2Y (Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok), 6133E2S (Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok), 45940 (Hdt Expeditionary Systems Inc).
There are 4 known substitutes for 4820-01-425-2891: 1315-00-028-4799, 5306-01-018-7031, 5120-01-430-9969 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 45940: End Item Identification: MC-11 COMPRESSOR; Connection Style: PLAIN (SCREW-IN CARTRIDGE) ALL ENDS; Thread Series Designator: NPT ALL ENDS; Mounting Position: HORIZONTAL OR VERTICAL. 14 total characteristics are documented in the Federal Logistics Information System.