Product Details | SAFETY RELIEF VALVE

4820-01-429-8411 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: 33079294, 3307929-4, 5159B2MF, 5159B-2M-F, 4820-01-429-8411, 01-429-8411, 4820014298411, 014298411

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 19 APR 1996 01-429-8411

Drawings & Photos | NSN 4820-01-429-8411


Cross Reference | NSN 4820-01-429-8411

Part Number Cage Code Manufacturer
3307929-4 99251 CARLETON LIFE SUPPORT SYSTEMS INC. DBA COBHAM MISSION SYSTEM
5159B-2M-F 91816 CIRCOR AEROSPACE, INC. DBA CIRCLE SEAL CONTROLS

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Technical Data | NSN 4820-01-429-8411

Characteristic Specifications
MATERIAL COPPER ALLOY BODY
STYLE DESIGNATOR C7 STRAIGHT THRU
MEDIA FOR WHICH DESIGNED AIR 1ST RESPONSE ACETYLENE 2ND RESPONSE REFRIGERANT 12 3RD RESPONSE HYDROGEN 4TH RESPONSE GAS, INERT 5TH RESPONSE
MAXIMUM OPERATING PRESSURE 2400.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 250.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL PIPE ALL ENDS
CONNECTION STYLE G46B PLAIN ALL ENDS
THREAD SERIES DESIGNATOR NPT ALL ENDS
NOMINAL THREAD SIZE 0.250 INCHES ALL ENDS
THREAD DIRECTION RIGHT-HAND ALL ENDS
OPENING PRESSURE SETTING 100.0 POUNDS PER SQUARE INCH
MINIMUM OPERATING TEMP -40.0 DEG FAHRENHEIT
III END ITEM IDENTIFICATION AIRCRAFT, EAGLE F-15

Restrictions/Controls & Freight Information | NSN 4820-01-429-8411

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 AH Defense Supply Center Columbus
Columbus, OH 43215
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity
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