The Valve,check, cataloged under National Stock Number 4820-01-511-9029, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Core Industries Inc. Dba Mueller Steam Specialty. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-511-9029 |
| Primary Part Number | 72-BHB-4-X 8.0IN |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Core Industries Inc. Dba Mueller Steam Specialty |
| Status | ACTIVE |
| Flange Shape | ROUND ALL ENDS |
| Flange Face Design | PLAIN ALL ENDS |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Operating Pressure | 225.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 7.250 INCHES IN |
| Nominal Outside Diameter | 11.000 INCHES ALL ENDS IN |
| Disk Loading Method | SPRING |
| Face to Face Distance | 5.000 INCHES IN |
| Material | COPPER ALLOY BODY |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 72-BHB-4-X 8.0IN PRIMARY | Core Industries Inc. Dba Mueller Steam Specialty (USA) |
| AN-B.0-72B-1 AY 72-BHB-4-X 8.0IN | Core Industries Inc. Dba Mueller Steam Specialty (USA) |
NSN 4820-01-511-9029 is a Valve,check, manufactured by Core Industries Inc. Dba Mueller Steam Specialty, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-511-9029 has 2 manufacturer part numbers on file: 72-BHB-4-X 8.0IN (Core Industries Inc. Dba Mueller Steam Specialty), AN-B.0-72B-1 AY 72-BHB-4-X 8.0IN (Core Industries Inc. Dba Mueller Steam Specialty).
Key specifications for 72-BHB-4-X 8.0IN: Flange Shape: ROUND ALL ENDS; Flange Face Design: PLAIN ALL ENDS; Mounting Position: HORIZONTAL OR VERTICAL; Connection Type: FLANGE ALL ENDS. 12 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.