The Stem,fluid Valve, cataloged under National Stock Number 4820-01-509-6439, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Flowserve Us Company Div Flow Control Division. Government technical data includes 5 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-509-6439 |
| Primary Part Number | 001949.833.000 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Flowserve Us Company Div Flow Control Division |
| Status | ACTIVE |
| Valve Type for Which Designed | GLOBE |
| Stem Actuating End Type | THREADED EXTERNALLY |
| Valve Model Number for Which Designed | MARK I GLOBE |
| Valve Size for Which Designed | 3.000 INCHES IN |
| 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 |
|---|---|
| 608537.003 SEQ 50 | Flowserve Us Company Div Flow Control Division (USA) |
| 001949.833.000 | Pro-Quip Inc (USA) |
| 001949.833.000 PRIMARY | Flowserve Us Company Div Flow Control Division (USA) |
NSN 4820-01-509-6439 is a Stem,fluid Valve, manufactured by Flowserve Us Company Div Flow Control Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-509-6439 has 3 manufacturer part numbers on file: 608537.003 SEQ 50 (Flowserve Us Company Div Flow Control Division), 001949.833.000 (Pro-Quip Inc), 001949.833.000 (Flowserve Us Company Div Flow Control Division).
Key specifications for 001949.833.000: Valve Type for Which Designed: GLOBE; Stem Actuating End Type: THREADED EXTERNALLY; Valve Model Number for Which Designed: MARK I GLOBE; Valve Size for Which Designed: 3.000 INCHES IN. 5 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.