The Valve,check, cataloged under National Stock Number 4820-00-223-0149, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Crissair Inc Div Esco Technologies. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 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 | 4820-00-223-0149 |
| Primary Part Number | 2C9432 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Crissair Inc Div Esco Technologies |
| Status | ACTIVE |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Thread Quantity Per Inch | 12 ALL ENDS |
| Connection Style | FLARELESS ALL ENDS |
| Maximum Operating Temp | 275.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Flow Control Device | POPPET |
| Seat Angle | 12.0 DEGREES FIRST END |
| Media for Which Designed | OIL, HYDRAULIC SINGLE RESPONSE |
| Material | STEEL COMP 630 BODY |
| Nominal Thread Size | 1.062 INCHES ALL ENDS IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Style Designator | STRAIGHT THRU |
| Surface Treatment | PASSIVATE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) ALL ENDS |
| Opening Pressure Setting | 10.0 POUNDS PER SQUARE INCH LBS |
| Material Document and Classification | QQ-S-763,CL 440C FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Material | STEEL COMP 630 SEAT |
| Material | STEEL COMP 440C FLOW CONTROL DEVICE |
| Disk Loading Method | SPRING |
| Valve Operation Method | AUTOMATIC |
| Thread Class | 3A ALL ENDS A |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| CVC4122-12 | Crissair Inc Div Esco Technologies (USA) |
| 2647-12 | Hawker Pacific Aerospace Landing Gear and Components Mfg and Repair (USA) |
| CVC4122-12 | Triumph Aerostructures, Llc Dba Triumph Aerostructures - Vought Integrated Programs Division (USA) |
| 2C9432 PRIMARY | Crissair Inc Div Esco Technologies (USA) |
| 2647-12 | Tactair Fluid Controls Inc (USA) |
| 2647-12 | Kaiser Fluid Technologies Inc. (USA) |
NSN 4820-00-223-0149 is a Valve,check, manufactured by Crissair Inc Div Esco Technologies, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-223-0149 has 6 cross-referenced part numbers: CVC4122-12 (Crissair Inc Div Esco Technologies), 2647-12 (Hawker Pacific Aerospace Landing Gear and Components Mfg and Repair), CVC4122-12 (Triumph Aerostructures, Llc Dba Triumph Aerostructures - Vought Integrated Programs Division), 2C9432 (Crissair Inc Div Esco Technologies), 2647-12 (Tactair Fluid Controls Inc) and 1 more.
There is 1 known substitute for 4820-00-223-0149: 5930-01-574-9747. Verify interchangeability with system specifications before substitution.
Key specifications for 2C9432: Mounting Position: HORIZONTAL OR VERTICAL; Thread Direction: RIGHT-HAND ALL ENDS; Connection Type: THREADED EXTERNAL TUBE ALL ENDS; Thread Quantity Per Inch: 12 ALL ENDS. 26 total characteristics are documented in the Federal Logistics Information System.