NSN 4820-01-235-2820 2270-27 ASSEMBLY 99L1, 227027ASSEMBLY99L1, 711-4457300 ASSEMBLY 99L1

Product Details | SAFETY RELIEF VALVE

4820-01-235-2820 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: 2270-27 ASSEMBLY 99L1, 227027ASSEMBLY99L1, 711-4457300 ASSEMBLY 99L1, 7114457300105112114123125, 71144573001051121141231251, 7114457300ASSEMBLY99L1, 4820-01-235-2820, 01-235-2820, 4820012352820, 012352820

Valves | Valves, Nonpowered

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
48	27 JUN 1986	01-235-2820	05488 ( VALVE, SAFETY RELIEF )

Drawings & Photos | NSN 4820-01-235-2820

Part Number	Request Date	QTY	Origin
1	2024-09-267	1	us
1	2024-07-212	1	US
1	2023-11-319	1	US
1	2023-11-311	1	United States
1	2023-05-137	1	US
4820-01-235-2820	2023-01-09	0	NECO
123	2022-07-209	1	US
123	2021-08-223	1	US
1	2020-11-325	1	US
-	2020-02-49	1	Thailand
-	2020-02-49	1	Thailand
-	2020-02-49	1	Thailand
-	2020-02-49	1	Thailand
123	2019-09-256	1	US
123	2019-09-255	1	US
1	2019-05-141	1	US
1	2019-04-99	4
1	2016-10-301	1
1	2016-07-209	22	us
1	2016-07-209	12	us
125	2015-06-160	1	United States
-	2015-05-127	1	IN
-	2015-02-33	10	Korea
-	2015-02-33	10	Korea
-	2015-02-33	1	Korea
-	2015-02-33	2	Korea
-	2015-02-33	5	Korea
4820-01-235-2820	2014-11-315	11	NECO
1	2014-05-136	1	US
123	2013-03-72	1	United States
-	2013-02-51	10	AE
-	2013-02-51	10	AE
-	2013-02-51	10	AE
-	2013-02-51	10	AE
-	2013-02-51	35	AE
-	2013-02-51	35	AE
-	2013-02-51	35	AE
-	2013-02-51	50	AE
-	2013-02-51	50	AE
-	2013-02-51	50	AE
-	2013-02-51	35	AE
-	2013-02-51	50	AE
-	2013-02-51	50	AE
-	2013-02-51	50	AE
-	2013-02-51	50	AE
-	2013-02-51	60	AE
-	2013-02-35	6	PK
-	2013-02-35	4	PK
-	2013-02-35	5	PK
-	2013-02-35	10	PK
-	2013-02-35	2	PK
-	2013-02-35	2	PK
-	2013-02-35	2	PK
-	2013-02-35	15	PK
-	2013-02-35	20	PK
-	2013-02-35	12	PK
-	2013-02-35	10	PK
-	2013-02-35	12	PK
123	2013-01-10	2	US
114	2012-12-348	1	United States
125	2012-07-207	4	United States
123	2012-03-81	1	US
1	2011-06-160	1	PH
112	2010-08-240	100	US
114	2008-10-302	10	Canada
112	2008-07-183	1	Netherlands
123	2008-01-23	0	US

Cross Reference | NSN 4820-01-235-2820

Part Number	Cage Code	Manufacturer
2270-27 ASSEMBLY 99L1	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
711-4457300 ASSEMBLY 99L1	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
711-4457300105,112,114,123,125,-	80064	NAVAL SHIP SYSTEMS COMMAND
711-4457300105,112,114,123,125,1	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG

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Related Products | NSN 4820-01-235-2820

4820-01-235-2888, 4820-01-235-3132, 4820-01-235-3133, 4820-01-235-3135, 4820-01-235-3225

Technical Data | NSN 4820-01-235-2820

Characteristic	Specifications
SPECIAL FEATURES	AS DIFFERENTIATED BY EXTRA LONG REFERENCE NUMBER
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS	QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
CRITICALITY CODE JUSTIFICATION	ZZZY
EXTRA LONG REFERENCE NUMBER	711-4457300105,112,114,123,125,12 6
MANUFACTURERS CODE	80064
DESIGN CONTROL REFERENCE	711-4457300105,112,114,123,125,-

Restrictions/Controls & Freight Information | NSN 4820-01-235-2820

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:	B	Munitions 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:	U	UNCLASSIFIED
Precious Metals Indicator Code:	A	Item does not contain precious metal
Criticality Code:	S	The item is a non-aviation Critical Safety Item (CSI) whose failure will result in serious damage to equipment or serious injury or death to personnel.
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	P	77.5
Less than truck load rating	P	77.5
Water commodity Code	594	unknown
Originating Activity Code	HD	Naval Inventory Control Point Mechanicsburg, PA 17055-0788
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 4820-01-235-2820

Navy

Category	Code	Description
Cognizance Codes	3H	NAVICP MECH managed Field Level Repairables Naval Inventory Control Point, Mechanicsburg
Special Material ID	L1	An items that supports either a SUBSAFE or Level 1 system that has undergone the extreme material control and quality assurance techniques that provide objective exidence of its acceptance for its appropriate application. Each item has certification papers (or special markings that provide traceability to the certification) that pedigree its material and physical properties, provide traceability, to manufacturer, contract list and lot, and document the quality assurance system and test requirements applied to the item.
Issue Repair, or Requisition	BL	Submit/refer requisitions to NAVICP MECH. Centralized control for issue of repair parts for specific programs/equipments.
Special Material Content	9	Non-Hazardous or Non-Sensitive Item, does not require hazardous or special handling, packaging or precautions
Source of Supply	NRP	NAVICP-ERP 700 Robbins Avenue Philadelphia, PA 19111-5098
Agency	DN	Department of the Navy
Service Organization	N	U.S. Navy
Reparability	D	Field Level Reparables
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