The Stem,fluid Valve, cataloged under National Stock Number 4820-01-484-0156, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-484-0156 |
| Primary Part Number | 845-7284929 ITEM 43 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Valve Type for Which Designed | BALL |
| Stem Actuating End Type | ROUNDED |
| Material Document and Classification | QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE |
| Specification/standard Data | QQ-N-286 FORM 2 CD ANL GOVERNMENT SPECIFICATION |
| Valve Size for Which Designed | 3.000 INCHES IN |
| 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 |
|---|---|
| 845-7284929 ITEM 43 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 2643-820-88 ITEM 43 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-484-0156 is a Stem,fluid Valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-484-0156 has 1 manufacturer part number on file: 845-7284929 ITEM 43 (Naval Sea Systems Command).
Key specifications for 845-7284929 ITEM 43: Valve Type for Which Designed: BALL; Stem Actuating End Type: ROUNDED; Material Document and Classification: QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE; Overall Length: 10.480 INCHES NOMINAL IN. 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.