The Disk,valve, cataloged under National Stock Number 4820-01-271-0203, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Flowserve Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-271-0203 |
| Primary Part Number | F-46909 ITEM 5 1/4IN |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Flowserve Inc |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| F-46909 ITEM 5 1/4IN PRIMARY | Flowserve Inc (USA) |
| Reference | Meaning |
|---|---|
| F-46909 | D/9 Drawing number reference only Flowserve Inc |
| F-46909 ITEM 5 | C/1 Advisory reference — outside the item-of-supply concept Flowserve Inc |
| F-46909 ITEM 1 1/4IN | 5/9 Secondary reference Flowserve Inc |
NSN 4820-01-271-0203 is a Disk,valve, manufactured by Flowserve Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-271-0203 has 1 manufacturer part number on file: F-46909 ITEM 5 1/4IN (Flowserve Inc).
Key specifications for F-46909 ITEM 5 1/4IN: Material: STEEL CORROSION RESISTING. 1 specification is 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.