The Disk,valve, cataloged under National Stock Number 4820-01-121-6457, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-121-6457 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Outside Diameter | 2.010 INCHES NOMINAL IN |
| Material | COBALT ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| B48091MGC | C/1 Advisory reference — outside the item-of-supply concept Hunt Valve Company, Inc. |
| D48249 PIECE 11 | C/1 Advisory reference — outside the item-of-supply concept Hunt Valve Company, Inc. |
| D48249 PIECE 11 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| B48091MGC | 3/9 Design control — primary reference Hunt Valve Company Inc Dba Union Flonetics |
| D48249 | D/9 Drawing number reference only Hunt Valve Company Inc Dba Union Flonetics |
| B48091-B | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| A48091 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
NSN 4820-01-121-6457 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-121-6457: Overall Height: 2.610 INCHES NOMINAL IN; Outside Diameter: 2.010 INCHES NOMINAL IN; Material: COBALT ALLOY. 2 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.