Product Details | FLUID PRESSURE REGULATING VALVE

4820-01-421-0056 A valve designed to automatically maintain within close limits a predetermined outlet pressure which may be adjustable within a specified range regardless of the higher fluctuating or constant inlet pressure. It is designed for use with compressed gas(es) and various liquids and may include gauges. It may be inline or cartridge (manifold) design. Excludes REGULATOR, PRESSURE, MEDICAL GAS ADMINISTRATION APPARATUS; REGULATOR, OXYGEN, BAROMETRIC CONTINUOUS FLOW; REGULATOR, OXYGEN DEMAND; REGULATOR, OXYGEN DILUTER DEMAND; and valve(1), fluid pressure regulating, aircraft.20248100015Valves, Powered48200018Valves, Nonpowered

Part Alternates: 542325T108S004, 54-2325T108S-004, 542325T108SG004, 54-2325T108SG004, 5516685231, 551-6685231, 4820-01-421-0056, 01-421-0056, 4820014210056, 014210056

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 30 OCT 1995 01-421-0056

Drawings & Photos | NSN 4820-01-421-0056


Demand History | NSN 4820-01-421-0056

Part Number Request Date QTY Origin
54-2325T108SG004 2025-11-328 4 DIBBS
54-2325T108SG004 2025-11-315 4 DIBBS
54-2325T108SG004 2025-10-300 6 DIBBS
54-2325T108SG004 2025-10-287 6 DIBBS
54-2325T108SG004 2025-07-205 1 DIBBS
54-2325T108SG004 2025-06-170 1 DIBBS
54-2325T108SG004 2025-05-142 1 DIBBS
54-2325T108SG004 2025-03-89 1 DIBBS
54-2325T108SG004 2025-03-82 1 DIBBS
54-2325T108SG004 2025-02-37 1 DIBBS
54-2325T108SG004 2024-10-305 1 DIBBS
54-2325T108SG004 2024-05-137 1 DIBBS
54-2325T108SG004 2023-12-355 4 DIBBS
54-2325T108SG004 2023-12-344 4 DIBBS
54-2325T108SG004 2023-09-250 2 DIBBS
54-2325T108SG004 2023-08-239 2 DIBBS
54-2325T108SG004 2023-04-96 1 DIBBS
54-2325T108SG004 2022-11-317 1 DIBBS
54-2325T108SG004 2022-03-79 1 DIBBS
4820-01-421-0056 2015-05-130 16 DIBBS

Cross Reference | NSN 4820-01-421-0056

Part Number Cage Code Manufacturer
54-2325T108S-004 5H642 TESCOM CORP PRESSURE CONTROLS DIV
54-2325T108SG004 13669 TESCOM CORPORATION DBA EMERSON PROCESS MANAGEMENT
54-2325T108SG004 5H642 TESCOM CORP PRESSURE CONTROLS DIV
551-6685231 53711 NAVAL SEA SYSTEMS COMMAND

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Technical Data | NSN 4820-01-421-0056

Characteristic Specifications
BODY MATERIAL STEEL, CORROSION RESISTING
SEAT MATERIAL STEEL, CORROSION RESISTING
FLOW CONTROL DEVICE POPPET
FLOW CONTROL DEVICE MATERIAL STEEL, CORROSION RESISTING
END CONNECTION QUANTITY 2
FIRST END CONNECTION TYPE THREADED INTERNAL BOSS
FIRST END STYLE DESIGNATOR B6 GASKET SEAL
FIRST END THREAD SIZE AND SERIES/TYPE DESIGNATOR 3/4-16 UNF
FIRST END THREAD CLASS 2B
FIRST END THREAD DIRECTION RIGHT-HAND
SECOND END RELATIONSHIP WITH FIRST END IDENTICAL
BODY STYLE A1 STRAIGHT THRU
MEDIA FOR WHICH DESIGNED NOT SPECIFIED
REGULATION TYPE MANUAL SINGLE STAGE
MANUAL CONTROL METHOD SCREW
TEMP RATING 105.0 DEG FAHRENHEIT MAXIMUM
MAXIMUM INLET PRESSURE RATING NOT RATED
OUTLET PRESSURE ACCURACY RATING NOT RATED
FILTER NOT INCLUDED
III END ITEM IDENTIFICATION SHIP, OHIO SSN (TRIDENT)

Restrictions/Controls & Freight Information | NSN 4820-01-421-0056

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:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 051080 FAUCETS,BIBCOCKS,GATES VALVES
Less than car load rating
Less than truck load rating W Rating Variable
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 4820-01-421-0056

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