The Valve,check, cataloged under National Stock Number 4820-01-332-8843, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Barber-Colman Co Environmental Controls Div. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-332-8843 |
| Primary Part Number | CYLB50614-1 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Barber-Colman Co Environmental Controls Div |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Flange Shape | ROUND ALL ENDS |
| Furnished Items and Quantity | 1 SPRING |
| Flange Face Design | PLAIN ALL ENDS |
| Mounting Position | VERTICAL |
| Connection Type | FLANGE ALL ENDS |
| Operating Pressure | 330.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Maximum Operating Temp | 800.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Nominal Outside Diameter | 2.262 INCHES ALL ENDS IN |
| Disk Loading Method | SPRING |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Material | STEEL CORROSION RESISTING OVERALL |
| Nominal Thickness | 0.131 INCHES ALL ENDS IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| CYLB50614-1 PRIMARY | Barber-Colman Co Environmental Controls Div (USA) |
NSN 4820-01-332-8843 is a Valve,check, manufactured by Barber-Colman Co Environmental Controls Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-332-8843 has 1 manufacturer part number on file: CYLB50614-1 (Barber-Colman Co Environmental Controls Div).
Key specifications for CYLB50614-1: Flow Control Device: DISK; Flange Shape: ROUND ALL ENDS; Furnished Items and Quantity: 1 SPRING; Flange Face Design: PLAIN ALL ENDS. 13 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.