The Stem,fluid Valve, cataloged under National Stock Number 4820-01-545-4555, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. The record lists 17 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-545-4555 |
| Primary Part Number | 566-6405738-SDGC FIND A8-1 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| 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 |
|---|---|
| 6230502-A8-2SS | Naval Inventory Control Point Mechanicsburg (USA) |
| 6230502 FIND A8-1SS | Naval Inventory Control Point Mechanicsburg (USA) |
| 566-6405738-SDGC FIND B8-1SS | Naval Inventory Control Point Mechanicsburg (USA) |
| 6230502-B8-2SS | Naval Inventory Control Point Mechanicsburg (USA) |
| 6230502 FIND A8-2SS | Naval Inventory Control Point Mechanicsburg (USA) |
| 566-6405738-SDGC FIND A8-2SS | Naval Inventory Control Point Mechanicsburg (USA) |
| 6230502-B8-1SS | Naval Inventory Control Point Mechanicsburg (USA) |
| 566-6405738-SDGC FIND B8-2SS | Naval Inventory Control Point Mechanicsburg (USA) |
| 6230502 FIND B8-2SS | Naval Inventory Control Point Mechanicsburg (USA) |
| 566-6405738-SDGC-B8-1SS | Naval Inventory Control Point Mechanicsburg (USA) |
| 566-6405738-SDGC FIND A8-1 PRIMARY | Naval Sea Systems Command (USA) |
| 566-6405738-SDGC-A8-1SS | Naval Inventory Control Point Mechanicsburg (USA) |
| 6230502 FIND B8-1SS | Naval Inventory Control Point Mechanicsburg (USA) |
| 566-6405738-SDGC FIND A8-1SS | Naval Inventory Control Point Mechanicsburg (USA) |
| 6230502-A8-1SS | Naval Inventory Control Point Mechanicsburg (USA) |
| 566-6405738-SDGC-B8-2SS | Naval Inventory Control Point Mechanicsburg (USA) |
| 566-6405738-SDGC-A8-2SS | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 566-6405738-SDGC FIND A8-2 | 5/1 Secondary reference Naval Sea Systems Command |
| 566-6405738-SDGC FIND B8-2 | 5/1 Secondary reference Naval Sea Systems Command |
| 566-6405738-SDGC FIND B8-1 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 4820-01-545-4555 is a Stem,fluid Valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-545-4555 has 17 manufacturer part numbers on file: 6230502-A8-2SS (Naval Inventory Control Point Mechanicsburg), 6230502 FIND A8-1SS (Naval Inventory Control Point Mechanicsburg), 566-6405738-SDGC FIND B8-1SS (Naval Inventory Control Point Mechanicsburg), 6230502-B8-2SS (Naval Inventory Control Point Mechanicsburg), 6230502 FIND A8-2SS (Naval Inventory Control Point Mechanicsburg) and 12 more.
Key specifications for 566-6405738-SDGC FIND A8-1: Special Features: SEAWOLF CLASS SUBMARINE, STERN DIVING GEAR HYDRAULIC CYLINDER ASSEMBLY; End Item Identification: CYLINDER HYD. 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 4820-01-545-4555 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.