Product Details | SAFETY RELIEF VALVE

4820-01-421-0122 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: RV0520306, RV05-203-06, 7D0150, 7D015006, 7D0150-06, 4820-01-421-0122, 01-421-0122, 4820014210122, 014210122

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 30 OCT 1995 01-421-0122

Drawings & Photos | NSN 4820-01-421-0122


Cross Reference | NSN 4820-01-421-0122

Part Number Cage Code Manufacturer
7D0150 88277 BOEING COMPANY, THE DBA BOEING
7D0150-06 88277 BOEING COMPANY, THE DBA BOEING
RV05-203-06 91816 CIRCOR AEROSPACE, INC. DBA CIRCLE SEAL CONTROLS

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Technical Data | NSN 4820-01-421-0122

Characteristic Specifications
MATERIAL STEEL COMP 316 BODY STEEL COMP 316 FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OR ASTM A479 ASSN STD SINGLE MATERIAL RESPONSE BODY QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OR ASTM A479 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
SURFACE TREATMENT PASSIVATE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
STYLE DESIGNATOR C8 STRAIGHT THRU
MEDIA FOR WHICH DESIGNED WATER, FRESH SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 160.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL TUBE 1ST END THREADED INTERNAL BOSS 2ND END
CONNECTION STYLE G42 FLARED 1ST END G4 GASKET SEAL 2ND END
SEAT ANGLE 37.0 DEGREES 1ST END
THREAD SERIES DESIGNATOR UNJF ALL ENDS
NOMINAL THREAD SIZE 0.563 INCHES ALL ENDS
THREAD CLASS 3A 1ST END 3B 2ND END
THREAD DIRECTION RIGHT-HAND ALL ENDS
DISK LOADING METHOD SPRING
MINIMUM OPERATING TEMP -65.0 DEG FAHRENHEIT
III END ITEM IDENTIFICATION AIRCRAFT, AIRLIFTER C-17A

Restrictions/Controls & Freight Information | NSN 4820-01-421-0122

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
No Freight Information

Management | NSN 4820-01-421-0122

Category Code Description
Materiel Management Aggregation CodeBATB:C-17 PROGRAM
Price ValidationN The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM.
  • The price has not been analyzed or reviewed for accuracy.
  • ZOP or Standard price challenges are permissible, but must be supported with adequate justification. However, if coded for Local Purchase (LP) or Fabrication/Manufacture as indicated with an (LM) Acquisition Advice Code of ?L? or?F?,the case must be evaluated locally where purchased or fabricated.
Budget CodeS 1557X3010:Aircraft Replenishment Spares
Source of SupplyF77Boeing Military Transportation Aircraft
Los Angeles, CA 90307-3044
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
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