The Valve,check, cataloged under National Stock Number 4820-01-122-3848, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Gulf Valve Co. Government technical data includes 15 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 | 4820-01-122-3848 |
| Primary Part Number | MB15-9071MR 2IN |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Gulf Valve Co |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Flange Shape | ROUND ALL ENDS |
| Flange Face Design | RAISED STRAIGHT ALL ENDS |
| Mounting Position | HORIZONTAL |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Valve Size | 2.000 INCHES IN |
| Nominal Outside Diameter | 4.125 INCHES ALL ENDS IN |
| Disk Loading Method | SPRING |
| Face to Face Distance | 2.375 INCHES IN |
| Material | COPPER ALLOY BODY |
| Raised Face Nominal Diameter | 3.750 INCHES ALL ENDS IN |
| Valve Operation Method | AUTOMATIC |
| Raised Face Nominal Height | 0.062 INCHES ALL ENDS IN |
| Nominal Thickness | 0.375 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 |
|---|---|
| MB15-9071MR 2IN PRIMARY | Gulf Valve Co (USA) |
NSN 4820-01-122-3848 is a Valve,check, manufactured by Gulf Valve Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-122-3848 has 1 manufacturer part number on file: MB15-9071MR 2IN (Gulf Valve Co).
Key specifications for MB15-9071MR 2IN: Flow Control Device: DISK; Flange Shape: ROUND ALL ENDS; Flange Face Design: RAISED STRAIGHT ALL ENDS; Mounting Position: HORIZONTAL. 15 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.