The Valve,safety Relief, cataloged under National Stock Number 4820-01-398-2079, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hunt Valve Company, Inc.. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-398-2079 |
| Primary Part Number | D48662 ASSEMBLY D48662-12 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hunt Valve Company, Inc. |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Style Designator | ANGLE |
| Material | BRONZE BODY |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Material | NICKEL ALLOY SEAT |
| Material | STEEL CORROSION RESISTING STEM |
| 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 |
|---|---|
| D48662-12-BM1 | Hunt Valve Company, Inc. (USA) |
| D48662-12 | Hunt Valve Company, Inc. (USA) |
| D48662 ASSEMBLY D48662-12 PRIMARY | Hunt Valve Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| D48662-12-BM1 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| D48662-12 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| D48662 ASSEMBLY D48662-12 | 3/9 Design control — primary reference Hunt Valve Company Inc Dba Union Flonetics |
| D48662 | D/9 Drawing number reference only Hunt Valve Company Inc Dba Union Flonetics |
NSN 4820-01-398-2079 is a Valve,safety Relief, manufactured by Hunt Valve Company, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-398-2079 has 3 manufacturer part numbers on file: D48662-12-BM1 (Hunt Valve Company, Inc.), D48662-12 (Hunt Valve Company, Inc.), D48662 ASSEMBLY D48662-12 (Hunt Valve Company, Inc.).
Key specifications for D48662 ASSEMBLY D48662-12: Flow Control Device: DISK; Style Designator: ANGLE; Material: BRONZE BODY; Material: NICKEL ALLOY FLOW CONTROL DEVICE. 7 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.