The Stem,fluid Valve, cataloged under National Stock Number 4820-01-353-6305, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-353-6305 |
| Primary Part Number | 845-2445483 ASSEMBLY B |
| 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 | 1.623 INCHES MAXIMUM IN |
| Stem Actuating End Type | THREADED EXTERNALLY AND SLOTTED |
| Material Document and Classification | MIL-B-24059 MIL SPEC SINGLE MATERIAL RESPONSE |
| Valve Size for Which Designed | 4.000 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 | S |
| Part Number | Manufacturer |
|---|---|
| 845-2445483 ASSEMBLY B | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 845-2445483 ASS EMBLY B | 3/1 Design control — primary reference U.S. Government activity |
| 845-2050574 PIECE 8 | 3/1 Design control — primary reference U.S. Government activity |
NSN 4820-01-353-6305 is a Stem,fluid Valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-353-6305 has 1 manufacturer part number on file: 845-2445483 ASSEMBLY B (Naval Sea Systems Command).
Key specifications for 845-2445483 ASSEMBLY B: Valve Type for Which Designed: BALL; Largest Outside Diameter: 1.623 INCHES MAXIMUM IN; Stem Actuating End Type: THREADED EXTERNALLY AND SLOTTED; Material Document and Classification: MIL-B-24059 MIL 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.