The Stem,fluid Valve, cataloged under National Stock Number 4820-01-456-0459, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-456-0459 |
| Primary Part Number | 801-6408784 FIND 208 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Valve Type for Which Designed | BALL |
| Largest Outside Diameter | 1.520 INCHES MINIMUM AND 1.530 INCHES MAXIMUM IN |
| Stem Actuating End Type | FLATTED AND THREADED EXTERNALLY |
| Material Document and Classification | QQ-N-286 FORM 2, COND ANL, AH, FIN-C FED SPEC SINGLE MATERIAL RESPONSE |
| Features Provided | SPECIAL MARKING AND THREADED |
| Material | NICKEL ALLOY |
| 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 |
|---|---|
| 801-6408784 FIND 208 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| DF330644 FN-208 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 6408784 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4820-01-456-0459 is a Stem,fluid Valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-456-0459 has 1 manufacturer part number on file: 801-6408784 FIND 208 (Naval Sea Systems Command).
Key specifications for 801-6408784 FIND 208: Valve Type for Which Designed: BALL; Largest Outside Diameter: 1.520 INCHES MINIMUM AND 1.530 INCHES MAXIMUM IN; Stem Actuating End Type: FLATTED AND THREADED EXTERNALLY; Material Document and Classification: QQ-N-286 FORM 2, COND ANL, AH, FIN-C FED SPEC SINGLE MATERIAL RESPONSE. 6 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.