Product Details | PRESSURE AND TEMPERATURE RELIEF VALVE

4820-01-253-7579 A valve designed to release under excessive pressure and/or excessive temperature by opening at a predetermined pressure and/or temperature. Thermostatically operated valves close when the pressure is relieved or the temperature is reduced. Fusible plug valves require replacement of the plug. See also VALVE, SAFETY RELIEF and VALVE, REGULATING. TEMPERATURE.

Part Alternates: 40A141083, 40A14108-3, 4820-01-253-7579, 01-253-7579, 4820012537579, 012537579

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 24 APR 1987 01-253-7579

Cross Reference | NSN 4820-01-253-7579

Part Number Cage Code Manufacturer
40A14108-3 14170 HUGHES MISSILE SYSTEMS CO SAN DIEGO
40A14108-3 15090 RAYTHEON COMPANY DBA RAYTHEON

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Technical Data | NSN 4820-01-253-7579

Characteristic Specifications
III FSC APPLICATION DATA PACER SPECIAL
MANUFACTURERS CODE 15090
DESIGN CONTROL REFERENCE 40A14108-3

Restrictions/Controls & Freight Information | NSN 4820-01-253-7579

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.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
NMF Description 127220 PRESSURE REG/RED/RELIEF VALVES NOI
Less than car load rating P 77.5
Less than truck load rating P 77.5
Water commodity Code 594 unknown
Originating Activity Code SX Oklahoma City Air Logistics Center
Tinker AFB, OK 73145-3043
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 Z unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable