Valve, Relief, Pressure and Temper4820-01-654-3107

NSN 4820-01-654-3107 · NIIN 016543107 · Part number RDDA-LCN/AP-3550 PSI

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

Government record, cited

NSN 4820-01-654-3107 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-654-3107. Manufacturer of record part number: RDDA-LCN/AP-3550 PSI.

Also searched as 4820-01-654-3107 · 4820016543107 · NIIN 016543107 · 01-654-3107 · FSC 4820 Valves, Nonpowered · CAGE 54035 · RDDA-LCN/AP-3550 PSI

Nearby stock numbers ← 4820-01-654-3078 Valve, Check · 4820-01-654-3189 Valve, Ball →

4820-01-654-3107 — Valves, Nonpowered

Features

Valve,relief,pressure and Temper — FSC 4820
Body Style: STRAIGHT THRU
Surface Treatment: PASSIVATE OUTSIDE
Material: STEEL CORROSION RESISTING BODY
2 manufacturer part numbers on file
Manufacturer of record: Sun Hydraulics Corporation

Identification

NSN: 4820-01-654-3107
NIIN: 016543107
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: RDDA-LCN/AP-3550 PSI
Manufacturer: Sun Hydraulics Corporation

General Description

The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-654-3107, 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 3 specifications, cited from the U.S. Government catalog. 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	4820-01-654-3107
Primary Part Number	RDDA-LCN/AP-3550 PSI
Item Name	Valve,relief,pressure and Temper
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Sun Hydraulics Corporation
Status	ACTIVE
Body Style	STRAIGHT THRU
Surface Treatment	PASSIVATE OUTSIDE
Material	STEEL CORROSION RESISTING BODY

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
RDDA-LCN/AP-3550 PSI	Advanced Fluid Systems, Inc (USA)
RDDA-LCN/AP-3550 PSI 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 4820-01-654-3107?

NSN 4820-01-654-3107 is a Valve,relief,pressure and Temper, manufactured by Sun Hydraulics Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-654-3107?

NSN 4820-01-654-3107 has 2 manufacturer part numbers on file: RDDA-LCN/AP-3550 PSI (Advanced Fluid Systems, Inc), RDDA-LCN/AP-3550 PSI (Sun Hydraulics Corporation).

What are the specifications of RDDA-LCN/AP-3550 PSI?

Key specifications for RDDA-LCN/AP-3550 PSI: Body Style: STRAIGHT THRU; Surface Treatment: PASSIVATE OUTSIDE; Part Name Assigned by Controlling Agency: VALVE RELIEF; End Item Identification: FWD ELEC ASSEMBLY. 3 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-654-3107 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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