The Valve,check, cataloged under National Stock Number 4820-01-652-2771, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hy-Grade Valve, Inc.. Government technical data includes 16 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 | 4820-01-652-2771 |
| Primary Part Number | T01-1.5F-10-FFX |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hy-Grade Valve, Inc. |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Flange Shape | ROUND ALL ENDS |
| Flange Face Design | PLAIN ALL ENDS |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 275.00 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 1.50 INCHES IN |
| Maximum Operating Temp | 1000.00 FAHRENHEIT SINGLE RESPONSE DEGF |
| Nominal Outside Diameter | 3.375 INCHES ALL ENDS IN |
| Disk Loading Method | SPRING |
| Face to Face Distance | 2.375 INCHES IN |
| Material | STEEL COMP 316 BODY |
| Material | STEEL COMP 316 SEAT |
| Material | STEEL COMP 316 FLOW CONTROL DEVICE |
| Valve Operation Method | AUTOMATIC |
| Nominal Thickness | 2.375 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 |
|---|---|
| T01-1.5F-10-FFX PRIMARY | Hy-Grade Valve, Inc. (USA) |
NSN 4820-01-652-2771 is a Valve,check, manufactured by Hy-Grade Valve, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-652-2771 has 1 manufacturer part number on file: T01-1.5F-10-FFX (Hy-Grade Valve, Inc.).
Key specifications for T01-1.5F-10-FFX: Flow Control Device: DISK; Flange Shape: ROUND ALL ENDS; Flange Face Design: PLAIN ALL ENDS; Connection Type: FLANGE ALL ENDS. 16 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.