The Valve,check, cataloged under National Stock Number 4820-01-249-1322, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Fabco Air Inc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-249-1322 |
| Primary Part Number | 18CVS |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Fabco Air Inc |
| Status | ACTIVE |
| Disk Loading Method | SPRING |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Maximum Operating Temp | -30.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Maximum Operating Temp | 250.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Thread Series Designator | NPT ALL ENDS |
| Material | COPPER ALLOY OVERALL |
| Nominal Thread Size | 0.125 INCHES ALL ENDS IN |
| Style Designator | STRAIGHT THRU |
| Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| Flow Control Device | DISK |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-01-249-1322 is a Valve,check, manufactured by Fabco Air Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-249-1322 has 2 cross-referenced part numbers: 18CVS (Fabco Air Inc), 3287 (Buell Mfg Co).
There are 7 known substitutes for 4820-01-249-1322: 3455-00-059-5576, 5330-00-078-4705, 5330-00-376-4657 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 18CVS: Disk Loading Method: SPRING; Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Media for Which Designed: AIR SINGLE RESPONSE; Connection Style: PLAIN (PIPE) ALL ENDS. 15 total characteristics are documented in the Federal Logistics Information System.