Product Details | SAFETY RELIEF VALVE

4820-00-151-6678 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: 10658293, 30132NT20PSI, 30232 NT 20 PSI, 30232NT, 30232NT20PSI, 4820-00-151-6678, 00-151-6678, 4820001516678, 001516678

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 18 OCT 1971 00-151-6678

Drawings & Photos | NSN 4820-00-151-6678


Cross Reference | NSN 4820-00-151-6678

Part Number Cage Code Manufacturer
10658293 18876 U S ARMY AVIATION AND MISSILE COMMAND
30132NT20PSI 07282 FAIRCHILD INDUSTRIAL PRODUCTS COMPANY
30232 NT 20 PSI 07282 FAIRCHILD INDUSTRIAL PRODUCTS COMPANY
30232NT 07282 FAIRCHILD INDUSTRIAL PRODUCTS COMPANY

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Technical Data | NSN 4820-00-151-6678

Characteristic Specifications
MATERIAL ALUMINUM ALLOY BODY RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR AND PLASTIC POLYTETRAFLUOROETHYLENE FLOW CONTROL DEVICE ALUMINUM ALLOY SEAT
SURFACE TREATMENT PAINT
STYLE DESIGNATOR A1 STRAIGHT THRU
FLOW CONTROL DEVICE DIAPHRAGM
MAXIMUM OPERATING PRESSURE 250.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 70.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLE G9 PLAIN ALL ENDS
NOMINAL PIPE SIZE ACCOMMODATED 0.250 INCHES ALL ENDS
THREAD SERIES DESIGNATOR NPT ALL ENDS
NOMINAL THREAD SIZE 0.250 INCHES ALL ENDS
THREAD DIRECTION RIGHT-HAND ALL ENDS
BONNET TYPE INSIDE SCREW
BONNET ATTACHMENT METHOD INTEGRAL
MANUFACTURERS CODE 07282
DESIGN CONTROL REFERENCE 30232NT

Restrictions/Controls & Freight Information | NSN 4820-00-151-6678

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:UPrecious metal type is unknown
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 B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
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