Valve, Regulating, Fluid Pressure4820-01-659-3766

NSN 4820-01-659-3766 · NIIN 016593766 · Part number RDDT-QWN-240BAR

Sun Hydraulics Corporation · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 54035

Government record, cited

NSN 4820-01-659-3766 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-659-3766. Manufacturer of record part number: RDDT-QWN-240BAR.

Also searched as 4820-01-659-3766 · 4820016593766 · NIIN 016593766 · 01-659-3766 · FSC 4820 Valves, Nonpowered · CAGE 54035 · RDDT-QWN-240BAR · 91984767

Nearby stock numbers ← 4820-01-659-3759 Valve, Regulating, Fluid Pressure · 4820-01-659-3816 Valve, Check →

4820-01-659-3766 — Valves, Nonpowered

Features

Valve,regulating,fluid Pressure — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Sun Hydraulics Corporation

Identification

NSN: 4820-01-659-3766
NIIN: 016593766
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: RDDT-QWN-240BAR
Manufacturer: Sun Hydraulics Corporation

General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-659-3766, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Sun Hydraulics Corporation. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-659-3766
Primary Part Number	RDDT-QWN-240BAR
Item Name	Valve,regulating,fluid Pressure
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Sun Hydraulics Corporation
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
91984767	Thales Sa (FRA)
RDDT-QWN-240BAR PRIMARY	Sun Hydraulics Corporation (USA)

No interchangeability data on file.

Other items in FSC 4820 — Valves, Nonpowered

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4820-00-000-0097

4820-00-000-0097 · Item name not on file

4820-00-001-0010

VALVE,ROTARY,SELECTOR

4820-00-001-0020

4820-00-001-0020 · Item name not on file

4820-00-001-0021

4820-00-001-0021 · Item name not on file

4820-00-001-0032

4820-00-001-0032 · Item name not on file

4820-00-001-0037

VALVE,SAFETY RELIEF

4820-00-001-0042

4820-00-001-0042 · Item name not on file

4820-00-001-1230

4820-00-001-1230 · Item name not on file

Frequently Asked Questions

What is NSN 4820-01-659-3766?

NSN 4820-01-659-3766 is a Valve,regulating,fluid Pressure, manufactured by Sun Hydraulics Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-659-3766?

NSN 4820-01-659-3766 has 2 manufacturer part numbers on file: 91984767 (Thales Sa), RDDT-QWN-240BAR (Sun Hydraulics Corporation).

What are the specifications of RDDT-QWN-240BAR?

Key specifications for RDDT-QWN-240BAR: Special Features: CONTROL CAPPED AND LOCKWIRED, ADJUSTMENT RANGE 211-314 BAR (211-314 BAR)SEAL MATERIAL BUNA-N, RESPONSE TIME 2MS, MAX VALVE LEAKAGE AT RESET 10DROPS/MIN, NUMBER OF CLOCKWISE TURNS TO INCREASE SETTING 5, ADJ SCREW INTERNAL HEX SIZE 5/32IN, LOCKNUT HEX SIZE 9/16IN, IN; Part Name Assigned by Controlling Agency: DIRECT-ACTING RELIEF VALVE, CE MARKED. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-659-3766 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

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.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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