Product Details | SAFETY RELIEF VALVE

4820-01-173-1166 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: D49272, R10AF2J212, R10AF2J212 59T72PSI D49272, R10AF2J21259T72PSID49272, 4820-01-173-1166, 01-173-1166, 4820011731166, 011731166

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 29 FEB 1984 01-173-1166

Drawings & Photos | NSN 4820-01-173-1166


Demand History | NSN 4820-01-173-1166

Part Number Request Date QTY Origin
R10AF2J212 2019-05-136 1 DIBBS
R10AF2J212 59T72PSI D49272 2019-05-136 1 DIBBS
4820-01-173-1166 2018-06-179 1 DIBBS
4820-01-173-1166 2017-11-320 1 DIBBS
4820-01-173-1166 2016-12-340 1 DIBBS
4820-01-173-1166 2015-11-319 1 DIBBS
4820-01-173-1166 2015-11-305 1 DIBBS
4820-01-173-1166 2013-10-293 2 DIBBS
4820-01-173-1166 2011-05-129 2 DIBBS
4820-01-173-1166 2010-09-245 1 DIBBS
4820-01-173-1166 2009-04-110 1 DIBBS

Cross Reference | NSN 4820-01-173-1166

Part Number Cage Code Manufacturer
D49272 34889 HUNT VALVE COMPANY INC DBA UNION FLONETICS
R10AF2J212 34889 HUNT VALVE COMPANY INC DBA UNION FLONETICS
R10AF2J212 59T72PSI D49272 34889 HUNT VALVE COMPANY INC DBA UNION FLONETICS

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Technical Data | NSN 4820-01-173-1166

Characteristic Specifications
MATERIAL BRONZE BODY NICKEL ALLOY FLOW CONTROL DEVICE STEEL CORROSION RESISTING STEM
STYLE DESIGNATOR C1A ANGLE FLANGED ENDS
FIRST CONNECTION FACE TO CENTERLINE DISTANCE 3.625 INCHES
SECOND CONNECTION FACE TO CENTERLINE DISTANCE 3.469 INCHES
VALVE SIZE 1.000 INCHES
FLOW CONTROL DEVICE DISK
MAXIMUM OPERATING PRESSURE 400.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 250.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE FLANGE ALL ENDS
FLANGE SHAPE ROUND WITH HOLES ALL ENDS
NOMINAL OUTSIDE DIAMETER 5.562 INCHES 1ST END 4.250 INCHES 2ND END
NOMINAL THICKNESS 0.438 INCHES ALL ENDS
BOLT HOLE QUANTITY 6 1ST END 4 2ND END
BOLT HOLE NOMINAL DIAMETER 0.562 INCHES ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER 4.438 INCHES 1ST END 3.125 INCHES 2ND END
FLANGE FACE DESIGN PLAIN ALL ENDS
BONNET TYPE INSIDE SCREW
BONNET ATTACHMENT METHOD BOLTED
ADJUSTABLE PRESSURE RANGE 59.0 TO 72.0 POUNDS PER SQUARE INCH

Restrictions/Controls & Freight Information | NSN 4820-01-173-1166

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem 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.
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 AX Defense Supply Center Columbus
Columbus, OH 43216-5000
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 4820-01-173-1166

Category Code Description
Cognizance Codes3BNavy-owned stocks of field level repairable DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesZINSURANCE/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 CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each