NSN 4820-00-311-9762 A78520, A785202, A78520-2

Product Details | SAFETY RELIEF VALVE

4820-00-311-9762 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: A78520, A785202, A78520-2, PRRA1872020L, 187PR020LR, 30813, 4820-00-311-9762, 00-311-9762, 4820003119762, 003119762

Valves | Valves, Nonpowered

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
48	31 OCT 1973	00-311-9762	05488 ( VALVE, SAFETY RELIEF )

Part Number	Request Date	QTY	Origin
PRRA1872020L	2025-09-261	5	DIBBS
PRRA1872020L	2024-10-298	57	DIBBS
4820-00-311-9762	2024-10-277	10	US
PRRA1872020L	2023-11-331	7	DIBBS
PRRA1872020L	2022-11-334	6	DIBBS
PRRA1872020L	2022-11-321	5	DIBBS
PRRA1872020L	2022-10-298	1	DIBBS
PRRA1872020L	2019-05-127	2	DIBBS
4820-00-311-9762	2018-08-213	2	DIBBS
4820-00-311-9762	2018-01-29	3	DIBBS
PRRA1872020L	2016-03-62	17	US
PRRA1872020L	2015-04-103	12	United States
4820-00-311-9762	2012-05-141	5	DIBBS
4820-00-311-9762	2011-09-271	2	DIBBS

Cross Reference | NSN 4820-00-311-9762

Part Number	Cage Code	Manufacturer
187PR020LR	92555	THE LEE COMPANY
30813	99643	EATON CORPORATION DBA EATON AEROSPACE
A78520	94697	MOOG, INC.
A78520-2	94697	MOOG, INC.
PRRA1872020L	92555	THE LEE COMPANY

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Related Products | NSN 4820-00-311-9762

4820-00-311-9918, 4820-00-312-2539, 4820-00-312-2540, 4820-00-312-2575, 4820-00-312-6169

Technical Data | NSN 4820-00-311-9762

Characteristic	Specifications
MEDIA FOR WHICH DESIGNED	HYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE
MAXIMUM OPERATING TEMP	275.0 DEG FAHRENHEIT SINGLE RESPONSE
OPENING PRESSURE SETTING	2.0 POUNDS PER SQUARE INCH
SPECIAL FEATURES	CARTRIDGE TYPE
III END ITEM IDENTIFICATION	AIRCRAFT MODEL NO. F-15
MANUFACTURERS CODE	99643
MFR SOURCE CONTROLLING REFERENCE	30813

Restrictions/Controls & Freight Information | NSN 4820-00-311-9762

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:	F	The item is an Aviation Critical Safety Item/Flight Safety Critical Aircraft Part ((ACSI/FSCAP).

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 4820-00-311-9762

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.
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	Z	INSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with 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	Z	INSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	1 EA : Each