NSN 4820-00-664-6655 HVTS2537580, HVTS2537-580, WP4074523

Product Details | FLUID PRESSURE REGULATING VALVE

4820-00-664-6655 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: HVTS2537580, HVTS2537-580, WP4074523, WP4-0745-23, R502, R503, R52, 03X90, 04X34, 04X35, 07813772, 0781-3772, 639296, 998846, 4820-00-664-6655, 00-664-6655, 4820006646655, 006646655

Valves | Valves, Nonpowered

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
48	01 JAN 1963	00-664-6655	27565 ( VALVE, REGULATING, FLUID PRESSURE )

Drawings & Photos | NSN 4820-00-664-6655

Part Number	Request Date	QTY	Origin
HVTS2537-580	2025-10-300	50	DIBBS
HVTS2537-580	2025-10-289	50	DIBBS
HVTS2537-580	2025-10-281	142	DIBBS
HVTS2537-580	2025-09-266	142	DIBBS
HVTS2537-580	2025-03-90	48	DIBBS
HVTS2537-580	2025-03-77	48	DIBBS
HVTS2537-580	2023-11-317	120	DIBBS
4820-00-664-6655	2023-10-303	4	Saudi Arabia
HVTS2537-580	2023-10-298	120	DIBBS
4820-00-664-6655	2023-10-277	10	Saudi Arabia
4820-00-664-6655	2023-09-262	4	SA
4820-00-664-6655	2023-09-247	5	Saudi Arabia
HVTS2537-580	2023-08-239	60	DIBBS
HVTS2537580	2023-08-216	5	AE
HVTS2537-580	2023-07-191	56	DIBBS
4820-00-664-6655	2023-05-125	6	MANUAL
998846	2023-05-125	6	Saudi Arabia
HVTS2537-580	2023-02-33	65	DIBBS
HVTS2537-580	2022-08-215	75	DIBBS
HVTS2537-580	2022-05-136	54	DIBBS
HVTS2537-580	2022-04-104	60	DIBBS
HVTS2537-580	2022-02-58	6	DIBBS
HVTS2537-580	2021-12-353	8	DIBBS
HVTS2537-580	2021-11-322	6	DIBBS
HVTS2537-580	2021-10-285	54	DIBBS
HVTS2537-580	2021-04-109	7	DIBBS
HVTS2537-580	2021-04-94	7	DIBBS
HVTS2537-580	2020-03-61	80	DIBBS
HVTS2537-580	2019-11-325	143	DIBBS
HVTS2537-580	2019-03-79	177	DIBBS
4820-00-664-6655	2018-09-267	148	DIBBS
4820-00-664-6655	2018-09-254	148	DIBBS
4820-00-664-6655	2017-11-310	78	DIBBS
4820-00-664-6655	2017-04-100	201	DIBBS
4820-00-664-6655	2017-03-64	128	DIBBS
4820-00-664-6655	2017-02-40	123	DIBBS
4820-00-664-6655	2016-12-341	114	DIBBS
4820-00-664-6655	2016-03-91	206	DIBBS
4820-00-664-6655	2016-02-40	115	DIBBS
4820-00-664-6655	2014-10-303	96	DIBBS
4820-00-664-6655	2014-08-219	66	DIBBS
4820-00-664-6655	2014-05-133	56	DIBBS
4820-00-664-6655	2013-03-79	110	DIBBS
4820-00-664-6655	2012-11-320	44	DIBBS
4820-00-664-6655	2012-09-263	28	DIBBS
4820-00-664-6655	2011-03-69	62	DIBBS
4820-00-664-6655	2010-12-361	54	DIBBS
4820-00-664-6655	2010-08-242	41	DIBBS
4820-00-664-6655	2009-03-71	4	United States
4820-00-664-6655	2008-07-212	200	DIBBS

Cross Reference | NSN 4820-00-664-6655

Part Number	Cage Code	Manufacturer
03X90	30367	L-TEC WELDING AND CUTTING SYSTEMS
04X34	36346	UNION CARBIDE CORP SUB OF DOW CO THE
04X35	30367	L-TEC WELDING AND CUTTING SYSTEMS
04X35	36346	UNION CARBIDE CORP SUB OF DOW CO THE
0781-3772	63026	VICTOR EQUIPMENT CO
639296	36346	UNION CARBIDE CORP SUB OF DOW CO THE
998846	30367	L-TEC WELDING AND CUTTING SYSTEMS
998846	96073	ESAB GROUP, INC., THE DBA ESAB WELDING AND CUTTING
HVTS2537-580	63026	VICTOR EQUIPMENT CO
R502	30367	L-TEC WELDING AND CUTTING SYSTEMS
R502	36346	UNION CARBIDE CORP SUB OF DOW CO THE
R503	36346	UNION CARBIDE CORP SUB OF DOW CO THE
R52	03856	LOS ANGELES RESISTOR CO
WP4-0745-23	15657	WELDING PROCESS INC

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Related Products | NSN 4820-00-664-6655

4820-00-665-2411, 4820-00-670-0345, 4820-00-670-0843, 4820-00-670-1388, 4820-00-670-2473

Technical Data | NSN 4820-00-664-6655

Characteristic	Specifications
BODY MATERIAL	ALUMINUM ALLOY
FLOW CONTROL DEVICE	NEEDLE
FLOW CONTROL DEVICE MATERIAL	BRASS
END CONNECTION QUANTITY	2
FIRST END CONNECTION TYPE	THREADED INTERNAL TUBE
FIRST END STYLE DESIGNATOR	B17 HIGH PRESSURE FLARE
FIRST END OUTSIDE DIAMETER TUBE ACCOMMODATED	0.375 INCHES NOMINAL
FIRST END THREAD SIZE AND SERIES/TYPE DESIGNATOR	5/8-18 UNF
FIRST END THREAD CLASS	2B
FIRST END THREAD DIRECTION	RIGHT-HAND
FIRST END SEAT RADIUS	ANY ACCEPTABLE
SECOND END RELATIONSHIP WITH FIRST END	NOT IDENTICAL
SECOND END CONNECTION TYPE	THREADED EXTERNAL GAS CYLINDER
SECOND END STYLE DESIGNATOR	D11 SWIVEL NUT, FLARED
SECOND END THREAD SIZE AND SERIES/TYPE DESIGNATOR	0.960-14 NGO
SECOND END THREAD PITCH DIAMETERS	ANY ACCEPTABLE
SECOND END THREAD DIRECTION	RIGHT-HAND
BODY STYLE	A7 ANGLE
MEDIA FOR WHICH DESIGNED	ARGON AND HELIUM AND NITROGEN, GASEOUS
REGULATION TYPE	1ST STAGE AUTOMATIC, 2ND STAGE MANUAL
MANUAL CONTROL METHOD	KNOB
VALVE LOADING METHOD	SPRING
TEMP RATING	-40.0 DEG FAHRENHEIT MINIMUM AND 165.0 DEG FAHRENHEIT MAXIMUM
MAXIMUM INLET PRESSURE RATING	ANY ACCEPTABLE
OUTLET PRESSURE SETTING	50.0 POUNDS PER SQUARE INCH
OUTLET PRESSURE ACCURACY RATING	NOT RATED
FILTER	INCLUDED
FURNISHED ITEMS	FLOWMETER AND INLET PRESSURE GAGE
(NON-CORE DATA) DIAL OUTSIDE DIAMETER	2.100 INCHES
(NON-CORE DATA) SCALE UNIT OF MEASURE INSCRIPTION	POUNDS PER SQUARE INCH
(NON-CORE DATA) DIAL RANGE	0.0 TO 4000.0

Restrictions/Controls & Freight Information | NSN 4820-00-664-6655

Restrictions
Freight

Category	Code	Description
Shelf-Life Code:	0	Nondeteriorative
Hazardous Material Indicator Code	N	There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:	A	Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:	U	UNCLASSIFIED
Precious Metals Indicator Code:	U	Precious metal type is unknown
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	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	XX
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 4820-00-664-6655

Category	Code	Description
Materiel Category and Inventory Manager	J	Ground Forces Support Materiel (DLA/GSA Items)
Appropriation and Budget Activity	2	Stock Fund Secondary Items
Management Inventory Segment	2	NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic Code	0	Medical Materiel
Weapons Systems/End Item or Homogeneous Group	00	DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item
Accounting Requirements Code	X	Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items.
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DA	Department of the Army
Service Organization	A	U.S. Army
Reparability	Z	This is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
Acquisition Advice Codes	D	DoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	1 EA : Each

Category	Code	Description
Budget Code	9	General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors.
Price Validation	N	The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM. The price has not been analyzed or reviewed for accuracy. ZOP or Standard price challenges are permissible, but must be supported with adequate justification. However, if coded for Local Purchase (LP) or Fabrication/Manufacture as indicated with an (LM) Acquisition Advice Code of ?L? or?F?,the case must be evaluated locally where purchased or fabricated.
Fund Code	SF	Stock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Materiel Management Aggregation Code	SX	SX:AF SICA RESIDUAL MMAC-OC-ALC
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DF	Department of the Air Force
Service Organization	F	U.S. Air Force
Reparability	N	Stock Fund (except Munitions)
Acquisition Advice Codes	D	DoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	1 EA : Each

Category	Code	Description
Stores Account Code	1	Marine Corps Stock Fund Account Item.
Combat Essentiality Code	2	Non-Critical Repair Part. Repair parts or major components whose failure in an end item will not render the end item inoperative or reduce its effectiveness below the minimum acceptable level of efficiency, and which do not fit the definition of Code 3 or 4 items.
Materiel Management Code	B	All CommoditiesDefense Logistics Agency, (DLA,)
Echelon Management Code	2	ICP/DSSC Marine Corps-managed Recoverability Code D items and Defense Logistics Agency (DLA)/TACOM/GSA) items which the integrated manager has not decontrolled.
Operational Test Code	3	All items requiring calibration. Items may be technical or non-technical in nature, (i.e., electronic test equipment, meters, gauges, torque wrenches, etc.) All OTC 3 items require established calibration procedures.BLANK
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DM	U.S. Marine Corps
Service Organization	M	U.S. Marine Corps
Reparability	Z	Nonreparable item. When unserviceable, condemn and dispose at the level indicated by the first digit of the maintenance code.
Acquisition Advice Codes	D	DoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	1 EA : Each

Category	Code	Description
Cognizance Codes	9B	Navy-owned stocks of DLA material Naval Inventory Control Point, Mechanicsburg
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DN	Department of the Navy
Service Organization	N	U.S. Navy
Acquisition Advice Codes	D	DoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	1 EA : Each