NSN 4820-01-026-6944 23942221, 2394222-1, 01-026-6944

Product Details | SAFETY RELIEF VALVE

4820-01-026-6944 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: 23942221, 2394222-1, 4820-01-026-6944, 01-026-6944, 4820010266944, 010266944

Valves | Valves, Nonpowered

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
48	29 AUG 1976	01-026-6944	05488 ( VALVE, SAFETY RELIEF )

Drawings & Photos | NSN 4820-01-026-6944

Part Number	Request Date	QTY	Origin
4820-01-026-6944	2014-08-225	7	DIBBS
4820-01-026-6944	2014-07-212	30	DIBBS
4820-01-026-6944	2014-06-163	27	DIBBS
4820-01-026-6944	2014-05-131	26	DIBBS
4820-01-026-6944	2013-06-167	51	DIBBS
4820-01-026-6944	2013-02-43	26	DIBBS
4820-01-026-6944	2013-01-03	0	DIBBS
4820-01-026-6944	2012-11-310	0	DIBBS
4820-01-026-6944	2012-08-243	42	DIBBS
4820-01-026-6944	2012-02-44	40	DIBBS
4820-01-026-6944	2012-02-43	40	DIBBS
4820-01-026-6944	2011-07-199	40	DIBBS
4820-01-026-6944	2011-07-189	28	DIBBS
4820-01-026-6944	2011-02-48	7	DIBBS
4820-01-026-6944	2011-01-06	16	DIBBS
4820-01-026-6944	2009-05-141	23	DIBBS
4820-01-026-6944	2008-11-318	18	DIBBS

Cross Reference | NSN 4820-01-026-6944

Part Number	Cage Code	Manufacturer
2394222-1	99221	TAVCO INC.

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Related Products | NSN 4820-01-026-6944

4820-01-026-7076, 4820-01-026-7088, 4820-01-026-7092, 4820-01-026-7093, 4820-01-026-7095

Technical Data | NSN 4820-01-026-6944

Characteristic	Specifications
MATERIAL	ALUMINUM ALLOY 2024 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	ANODIZE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE
STYLE DESIGNATOR	C6 STRAIGHT THRU
FLOW CONTROL DEVICE	PISTON
MEDIA FOR WHICH DESIGNED	AIR 1ST RESPONSE NITROGEN, GASEOUS 2ND RESPONSE
MAXIMUM OPERATING PRESSURE	3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP	160.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD	AUTOMATIC
CONNECTION TYPE	THREADED EXTERNAL TUBE 1ST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED	0.250 INCHES 1ST END
THREAD SERIES DESIGNATOR	UNF 1ST END
NOMINAL THREAD SIZE	0.437 INCHES 1ST END
THREAD CLASS	3A 1ST END
THREAD DIRECTION	RIGHT-HAND 1ST END
DISK LOADING METHOD	SPRING
MANUFACTURERS CODE	99221
DESIGN CONTROL REFERENCE	2394222-1

Restrictions/Controls & Freight Information | NSN 4820-01-026-6944

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:	A	Item 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.
Automatic Data Processing Equipment:	0	Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)

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	KE	Naval ICP Philadelphia, PA 19111
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 4820-01-026-6944

Navy

Category	Code	Description
Cognizance Codes	9B	Navy-owned stocks of DLA material Naval Inventory Control Point, Mechanicsburg
Special Material Content	9	Non-Hazardous or Non-Sensitive Item, does not require hazardous or special handling, packaging or precautions
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