The Valve,hold,boom Hoist Cylinder, cataloged under National Stock Number 4820-01-516-6097, 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 7 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-516-6097 |
| Primary Part Number | 6391109 FIND 2 |
| Item Name | Valve,hold,boom Hoist Cylinder |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Connection Type | THREADED CARTRIDGE |
| End Connection Quantity | 3 |
| Adjustable Pressure Range | +1000.0 TO 2500.0 POUNDS PER SQUARE INCH LBS |
| Pilot Ratio | 10:1 |
| Opening Pressure Setting | 25.0 POUNDS PER SQUARE INCH LBS |
| Valve Discharge Flow Rate | 15.0 GALLONS PER MINUTE |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 6391109 FIND 2 PRIMARY | Naval Sea Systems Command (USA) |
| 6391109 FIND 002 | Naval Sea Systems Command (USA) |
| CBCH-LKV | Sun Hydraulics Corporation (USA) |
| Reference | Meaning |
|---|---|
| 581-6391109 | D/9 Drawing number reference only Naval Sea Systems Command |
| 6391109 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4820-01-516-6097 is a Valve,hold,boom Hoist Cylinder, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-516-6097 has 3 manufacturer part numbers on file: 6391109 FIND 2 (Naval Sea Systems Command), 6391109 FIND 002 (Naval Sea Systems Command), CBCH-LKV (Sun Hydraulics Corporation).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-540-8622. Verify interchangeability with system specifications before substitution.
Key specifications for 6391109 FIND 2: Connection Type: THREADED CARTRIDGE; End Connection Quantity: 3; Adjustable Pressure Range: +1000.0 TO 2500.0 POUNDS PER SQUARE INCH LBS; Special Features: SIMILAR TO 4820-01-382-7824 WHICH HAS BUNA-N SEAL. THIS IS A CARTRIDGE TYPE VALVE; NHA COUNTERBALANCE VALVE MANIFOLD ASSEMBLY P/N 6391109 (581-6391109). 7 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.