Product Details | SAFETY RELIEF VALVE

4820-01-177-8459 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: CASNN08SCE, CASNN08SCEA016, CASNN08SCE-A016, DN60FF171T209, DN60FF-171T209, MILV24332, MIL-V-24332, R10AD5F5AJ-CM1 AND D49723, R10AD5F5AJCM1ANDD49723, UCASNNSPSCCE, 4820-01-177-8459, 01-177-8459, 4820011778459, 011778459

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 27 APR 1984 01-177-8459

Drawings & Photos | NSN 4820-01-177-8459


Demand History | NSN 4820-01-177-8459

Part Number Request Date QTY Origin
MILV24332 2025-12-346 1 United States
4820-01-177-8459 2012-03-61 1 DIBBS
4820-01-177-8459 2010-03-87 1 DIBBS
4820-01-177-8459 2010-03-70 1 DIBBS

Cross Reference | NSN 4820-01-177-8459

Part Number Cage Code Manufacturer
CASNN08SCE 65079 DANCO VALVE COMPANY
CASNN08SCE-A016 5P967 DANTE VALVE COMPANY INC
CASNN08SCE-A016 65079 DANCO VALVE COMPANY
DN60FF-171T209 5P967 DANTE VALVE COMPANY INC
MIL-V-24332 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
R10AD5F5AJ-CM1 AND D49723 34889 HUNT VALVE COMPANY INC DBA UNION FLONETICS
UCASNNSPSCCE 65079 DANCO VALVE COMPANY

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Technical Data | NSN 4820-01-177-8459

Characteristic Specifications
MATERIAL STEEL BODY NICKEL ALLOY FLOW CONTROL DEVICE NICKEL ALLOY SEAT STEEL CORROSION RESISTING STEM
STYLE DESIGNATOR C1A ANGLE FLANGED ENDS
FIRST CONNECTION FACE TO CENTERLINE DISTANCE 3.438 INCHES
SECOND CONNECTION FACE TO CENTERLINE DISTANCE 3.438 INCHES
VALVE SIZE 0.500 INCHES
FLOW CONTROL DEVICE DISK
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE FLANGE ALL ENDS
FLANGE SHAPE ROUND WITH HOLES ALL ENDS
NOMINAL OUTSIDE DIAMETER 4.250 INCHES 1ST END 3.500 INCHES 2ND END
NOMINAL THICKNESS 0.375 INCHES 1ST END 0.312 INCHES 2ND END
BOLT HOLE QUANTITY 4 ALL ENDS
BOLT HOLE NOMINAL DIAMETER 0.625 INCHES ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER 3.125 INCHES 1ST END 2.375 INCHES 2ND END
FLANGE FACE DESIGN RAISED STRAIGHT ALL ENDS
RAISED FACE NOMINAL HEIGHT 0.062 INCHES ALL ENDS
RAISED FACE NOMINAL DIAMETER 1.375 INCHES ALL ENDS
BONNET TYPE INSIDE SCREW
BONNET ATTACHMENT METHOD BOLTED
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING 190.0 POUNDS PER SQUARE INCH
ADJUSTABLE PRESSURE RANGE 171.0 TO 209.0 POUNDS PER SQUARE INCH
FURNISHED ITEMS AND QUANTITY 1 LEVER
SPECIFICATION/STANDARD DATA 81349-MIL-V-24332 GOVERNMENT SPECIFICATION
NONDEFINITIVE SPEC/STD DATA B GRADE
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL-V-24332

Restrictions/Controls & Freight Information | NSN 4820-01-177-8459

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 4820-01-177-8459

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
ReparabilityDField Level Reparables
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each