NSN 4820-01-099-6642 B9422N, B-9422N, CRV250BK75

Product Details | PRESSURE AND TEMPERATURE RELIEF VALVE

4820-01-099-6642 A valve designed to release under excessive pressure and/or excessive temperature by opening at a predetermined pressure and/or temperature. Thermostatically operated valves close when the pressure is relieved or the temperature is reduced. Fusible plug valves require replacement of the plug. See also VALVE, SAFETY RELIEF and VALVE, REGULATING. TEMPERATURE.

Part Alternates: B9422N, B-9422N, CRV250BK75, CRV-250B-K-75, PRV9432, PRV9432N075, 50C00140025, 50C-0014-0025, 4820-01-099-6642, 01-099-6642, 4820010996642, 010996642

Valves | Valves, Nonpowered

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
48	22 AUG 1980	01-099-6642	16996 ( VALVE, RELIEF, PRESSURE AND TEMPERATURE )

Drawings & Photos | NSN 4820-01-099-6642

Part Number	Request Date	QTY	Origin
4820-01-099-6642	2025-12-348	3	Taiwan
4820-01-099-6642	2024-07-211	2	United States
4820-01-099-6642	2022-08-218	10	Romania
50C-0014-0025	2022-07-209	29	DIBBS
50C-0014-0025	2021-12-349	25	DIBBS
50C00140025	2016-05-125	3	United States

Cross Reference | NSN 4820-01-099-6642

Part Number	Cage Code	Manufacturer
50C-0014-0025	19062	ESSEX INDUSTRIES, INC.
B-9422N	06023	REGO CO A MARMON GROUP CO
CRV-250B-K-75	98678	GENERANT CO INC
PRV9432	06023	REGO CO A MARMON GROUP CO
PRV9432N075	06023	REGO CO A MARMON GROUP CO
PRV9432N075	2Y894	ENGINEERED CONTROLS INTERNATIONAL

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Related Products | NSN 4820-01-099-6642

4820-01-099-6677, 4820-01-099-6691, 4820-01-099-6692, 4820-01-099-6806, 4820-01-099-6995

Technical Data | NSN 4820-01-099-6642

Characteristic	Specifications
BODY STYLE	A1 STRAIGHT THRU
BODY MATERIAL	BRASS
FLOW CONTROL DEVICE	STEM AND INTEGRAL DISK
END CONNECTION QUANTITY	2
FIRST END CONNECTION TYPE	THREADED INTERNAL PIPE
FIRST END STYLE DESIGNATOR	G11 PLAIN
FIRST END NOMINAL PIPE SIZE ACCOMMODATED	0.500 INCHES
FIRST END THREAD DIRECTION	RIGHT-HAND
SECOND END RELATIONSHIP WITH FIRST END	NOT IDENTICAL
SECOND END CONNECTION TYPE	THREADED EXTERNAL PIPE
SECOND END STYLE DESIGNATOR	J2 INVERTED FLARE
SECOND END NOMINAL PIPE SIZE ACCOMMODATED	0.250 INCHES
SECOND END THREAD DIRECTION	RIGHT-HAND
TEMP ADJUSTABILITY	NOT ADJUSTABLE
MEDIA FOR WHICH DESIGNED	NITROGEN, LIQUID OXYGEN, GASEOUS OXYGEN, LIQUID
TEMP RATING	165.0 DEG FAHRENHEIT

Restrictions/Controls & Freight Information | NSN 4820-01-099-6642

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	SE	San Antonio Air Logistics Center Kelly AFB, TX 78241-5000
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 4820-01-099-6642

Air Force
Navy

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.
Materiel Management Aggregation Code	QF	TG:CHEMICAL AND GAS CYLINDERS
Fund Code	SF	Stock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
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
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