The Stem,fluid Valve, cataloged under National Stock Number 4820-01-578-9646, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Flowserve Us Inc. Div Flowserve Cookeville Valve Operation. Government technical data includes 3 specifications, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-578-9646 |
| Primary Part Number | 19690 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Flowserve Us Inc. Div Flowserve Cookeville Valve Operation |
| Status | ACTIVE |
| Valve Type for Which Designed | BALL |
| Valve Model Number for Which Designed | F51 |
| Material | STEEL COMP 316 |
| 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 |
|---|---|
| 19690 PRIMARY | Flowserve Us Inc. Div Flowserve Cookeville Valve Operation (USA) |
NSN 4820-01-578-9646 is a Stem,fluid Valve, manufactured by Flowserve Us Inc. Div Flowserve Cookeville Valve Operation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-578-9646 has 1 manufacturer part number on file: 19690 (Flowserve Us Inc. Div Flowserve Cookeville Valve Operation).
Key specifications for 19690: Valve Type for Which Designed: BALL; Valve Model Number for Which Designed: F51; End Item Identification: F51 FLANGED BALL VALVE; Material: STEEL COMP 316. 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.