Product Details | SAFETY RELIEF VALVE

4820-01-345-9972 A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.

Part Alternates: VRVD125BT110X, VRVD-125-B-T-110-X , 130921, 1-3092-1, 1455AS204, 1455AS2041, 1455AS204-1, 631B-3-1/8-28, 631B-3-1/8-T, 631B31828, 631B318T, 4820-01-345-9972, 01-345-9972, 4820013459972, 013459972

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 25 SEP 1991 01-345-9972

Drawings & Photos | NSN 4820-01-345-9972


Demand History | NSN 4820-01-345-9972

Part Number Request Date QTY Origin
VRVD-125-B-T-110-X 2020-12-349 12 DIBBS
4820-01-345-9972 2015-11-330 6 DIBBS
4820-01-345-9972 2015-10-295 15 DIBBS
1455AS204 2015-10-281 5 TR
4820-01-345-9972 2015-07-211 5 DIBBS
4820-01-345-9972 2015-02-47 17 DIBBS
4820-01-345-9972 2014-09-254 17 DIBBS
4820-01-345-9972 2013-01-22 4 DIBBS

Cross Reference | NSN 4820-01-345-9972

Part Number Cage Code Manufacturer
1-3092-1 09990 PARKER-HANNIFIN CORPORATION DBA HYDRAULIC VALVE DIV
1455AS204 30003 NAVAL AIR SYSTEMS COMMAND
1455AS204-1 30003 NAVAL AIR SYSTEMS COMMAND
631B-3-1/8-28 09990 PARKER-HANNIFIN CORPORATION DBA HYDRAULIC VALVE DIV
631B-3-1/8-28 86768 TELEDYNE INDUSTRIES INC TELEDYNE FLUID SYSTEMS REPUBLIC
631B-3-1/8-T 86768 TELEDYNE INDUSTRIES INC TELEDYNE FLUID SYSTEMS REPUBLIC

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Technical Data | NSN 4820-01-345-9972

Characteristic Specifications
MATERIAL STEEL CORROSION RESISTING BODY
STYLE DESIGNATOR C1 ANGLE
FLOW CONTROL DEVICE DISK
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLE G9 PLAIN ALL ENDS
THREAD SERIES DESIGNATOR NPT ALL ENDS
NOMINAL THREAD SIZE 0.125 INCHES ALL ENDS
THREAD DIRECTION RIGHT-HAND ALL ENDS
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING 110.0 POUNDS PER SQUARE INCH
SPECIAL FEATURES WEAPON SYSTEM ESSENTIAL. FEATURES - CLEAN AND PACKAGE FOR OXYGEN SERVICE
CRITICALITY CODE JUSTIFICATION FEAT
III END ITEM IDENTIFICATION 4920-01-176-3674 OXYGEN TEST STAND GROUND SUPPORT EQUIPMENT FOR THE F/A-18 HORNET AIRCRAFT

Restrictions/Controls & Freight Information | NSN 4820-01-345-9972

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:BMunitions List Item - Mutilation (MUT) to the point of scrap required. (Formerly: Demilitarization not required. Trade Security Controls (TSCs) required at disposition.)
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:FThe item is an Aviation Critical Safety Item/Flight Safety Critical Aircraft Part ((ACSI/FSCAP).
Category Code Description
NMF Description 127220 PRESSURE REG/RED/RELIEF VALVES NOI
Less than car load rating
Less than truck load rating P 77.5
Water commodity Code 594 unknown
Originating Activity Code AX Defense Supply Center Columbus
Columbus, OH 43216-5000
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity V Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 4820-01-345-9972

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each