The Stem,fluid Valve, cataloged under National Stock Number 4820-01-545-4564, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-545-4564 |
| Primary Part Number | 595-6401028-1SS |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 595-6401000 FIND 18SS | Naval Inventory Control Point Mechanicsburg (USA) |
| 211064103SS | Naval Inventory Control Point Mechanicsburg (USA) |
| 595-6401000-18SS | Naval Inventory Control Point Mechanicsburg (USA) |
| 595-6401028-1SS PRIMARY | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 595-6401028-1 | 5/1 Secondary reference Naval Sea Systems Command |
| 211064103 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 4820-01-545-4564 is a Stem,fluid Valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-545-4564 has 4 manufacturer part numbers on file: 595-6401000 FIND 18SS (Naval Inventory Control Point Mechanicsburg), 211064103SS (Naval Inventory Control Point Mechanicsburg), 595-6401000-18SS (Naval Inventory Control Point Mechanicsburg), 595-6401028-1SS (Naval Inventory Control Point Mechanicsburg).
Key specifications for 595-6401028-1SS: End Item Identification: WATER CYLINDER ASSEMBLY. 0 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.
NSN 4820-01-545-4564 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.