The Valve,hold,boom Hoist Cylinder, cataloged under National Stock Number 4820-01-421-0037, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Sun Hydraulics Corporation. Government technical data includes 5 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-421-0037 |
| Primary Part Number | CBIA-LHN |
| Item Name | Valve,hold,boom Hoist Cylinder |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Sun Hydraulics Corporation |
| Status | ACTIVE |
| Connection Type | THREADED CARTRIDGE |
| Adjustable Pressure Range | +1000.0 TO 4000.0 POUNDS PER SQUARE INCH LBS |
| Pilot Ratio | 3 TO 1 |
| Opening Pressure Setting | 3000.0 POUNDS PER SQUARE INCH LBS |
| Valve Operation Method | PILOT |
| 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 |
|---|---|
| DM52877/5 | Mactaggart Scott & Co Ltd (GBR) |
| DM52877 ITEM 5 | Mactaggart Scott & Co Ltd (GBR) |
| CBIA-LHN PRIMARY | Sun Hydraulics Corporation (USA) |
NSN 4820-01-421-0037 is a Valve,hold,boom Hoist Cylinder, manufactured by Sun Hydraulics Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-421-0037 has 3 manufacturer part numbers on file: DM52877/5 (Mactaggart Scott & Co Ltd), DM52877 ITEM 5 (Mactaggart Scott & Co Ltd), CBIA-LHN (Sun Hydraulics Corporation).
Key specifications for CBIA-LHN: Connection Type: THREADED CARTRIDGE; Adjustable Pressure Range: +1000.0 TO 4000.0 POUNDS PER SQUARE INCH LBS; Special Features: 0 TO 12 GPM;O/A LG 6.000 IN. IN; Part Name Assigned by Controlling Agency: COUNTERBALANCE VALVE. 5 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.