The Indicator,valve Opening, cataloged under National Stock Number 4820-01-321-2268, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-321-2268 |
| Primary Part Number | 109-251-180-430-000 |
| Item Name | Indicator,valve Opening |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp |
| Status | ACTIVE |
| Pointer Type | INDICATING SINGLE POINTER |
| Scale Division Quantity | 4 ALL INDICATORS ALL SCALES |
| Material | IRON CASE |
| 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 |
|---|---|
| D430-4-12-440 ITEM 9 | Emerson Automation Solutions Final Control Us Lp (USA) |
| 109-251-180-430-000 PRIMARY | Emerson Automation Solutions Final Control Us Lp (USA) |
| Reference | Meaning |
|---|---|
| 137-251-180-430-000 | 3/9 Design control — primary reference Emerson Automation Solutions Final Control Us Lp |
NSN 4820-01-321-2268 is a Indicator,valve Opening, manufactured by Emerson Automation Solutions Final Control Us Lp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-321-2268 has 2 manufacturer part numbers on file: D430-4-12-440 ITEM 9 (Emerson Automation Solutions Final Control Us Lp), 109-251-180-430-000 (Emerson Automation Solutions Final Control Us Lp).
Key specifications for 109-251-180-430-000: Pointer Type: INDICATING SINGLE POINTER; Scale Division Quantity: 4 ALL INDICATORS ALL SCALES; Special Features: INDICATOR MARKED CLOSE,1/4,1/2,3/4 OPENINGS; Material: IRON CASE. 3 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.