NSN 4920-01-518-1257 015181257

Product Details | SAFETY RELIEF VALVE

4920-01-518-1257 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: 015181257

Valves | Valves, Nonpowered

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
48	03 MAR 2004	01-518-1257	05488 ( VALVE, SAFETY RELIEF )

Part Number	Request Date	QTY	Origin
64304	2024-11-312	18	DIBBS
64304	2023-05-131	29	DIBBS
64304	2023-01-12	31	DIBBS
64304	2022-01-05	98	DIBBS
64304	2021-09-269	50	DIBBS
64304	2021-09-245	98	DIBBS
64304	2021-06-161	50	DIBBS
64304	2021-04-98	35	DIBBS
64304	2020-01-23	26	DIBBS
64304	2019-01-17	26	DIBBS
4820-01-518-1257	2018-04-109	35	DIBBS
4820-01-518-1257	2017-12-352	12	DIBBS
4820-01-518-1257	2017-12-337	35	DIBBS
4820-01-518-1257	2017-10-290	19	DIBBS
4820-01-518-1257	2017-08-215	15	DIBBS
4820-01-518-1257	2017-03-65	31	DIBBS
4820-01-518-1257	2016-09-256	23	DIBBS
4820-01-518-1257	2016-03-75	19	DIBBS
4820-01-518-1257	2015-05-148	28	DIBBS
4820-01-518-1257	2015-01-08	26	DIBBS
4820-01-518-1257	2014-04-98	15	DIBBS
4820-01-518-1257	2014-03-71	5	DIBBS
4820-01-518-1257	2014-02-56	5	DIBBS
4820-01-518-1257	2011-04-105	13	DIBBS
4820-01-518-1257	2010-08-242	20	DIBBS
4820-01-518-1257	2010-07-196	14	DIBBS
4820-01-518-1257	2009-09-244	73	DIBBS
4820-01-518-1257	2009-07-211	21	DIBBS
4820-01-518-1257	2009-06-159	17	DIBBS
4820-01-518-1257	2009-06-154	10	DIBBS

Cross Reference | NSN 4920-01-518-1257

Part Number	Cage Code	Manufacturer
64304	13669	TESCOM CORPORATION DBA EMERSON PROCESS MANAGEMENT
64304	1RZM1	CHASE SUPPLY, INC.

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Related Products | NSN 4920-01-518-1257

4820-01-518-1262, 4820-01-518-1263, 4820-01-518-1356, 4820-01-518-1358, 4820-01-518-1379

Technical Data | NSN 4920-01-518-1257

Characteristic	Specifications
CRITICALITY CODE JUSTIFICATION	AGAV
III END ITEM IDENTIFICATION	CONTROL PANEL ASSY;NITROGEN SERVICING UNIT (P/N 1317AS100-2)
III PART NAME ASSIGNED BY CONTROLLING AGENCY	(INAVY)VALVE, PRESS LIMIT, ACFT

Restrictions/Controls & Freight Information | NSN 4920-01-518-1257

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
Electro-static Discharge Susceptible:	A	No known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity
Precious Metals Indicator Code:	A	Item does not contain precious metal
Criticality Code:	Y	The item does not have a nuclear hardened feature but does have other critical feature(s) 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 4920-01-518-1257

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