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4820-00-618-4989
Safety Relief Valve
4820006184989 006184989 559B-2M-20 1390883 11241398-1
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. View more Safety Relief Valve
May 2023
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Restrictions 4820-00-618-4989
4820-00-618-4989 is a Safety Relief Valve that does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. Demilitarization of this item has been confirmed and is not currently subject to changes. This item is considered a low risk when released from the control of the Department of Defense. The item may still be subject to the requirements of the Export Administration Regulations (EAR) and the Code of Federal Regulations (CFR). This item is not suspected to be hazardous. The precious metals content of this item is unknown.
Import and Export 4820-00-618-4989
- Schedule B
- Subscribe to View Schedule B
- HTS Code
- Subscribe to View HTS Code
End Users 4820-00-618-4989
- US Army (A920)
- Effective Date:
- 1 Jul 2005
- MOE Rule:
- BGX1
- Effective Date:
- 1 Jul 2005
- US Navy (N9BC)
- Effective Date:
- 1 Jul 2005
- Supplementary Collaborators:
- KE
- United States of America (ZZ)
Approved Sources 4820-00-618-4989
- Part Number
- Manufacturer
- Status
- 559B-2M-20
- Manufacturer
- 91816 - Circor Aerospace, Inc. (Active)
- Primary Buy
- Primary Buy
- 1390883
- 10001 - Navair And Navsea Managed (Active)
- Secondary Buy
- Secondary Buy
- 11241398-1
- 17773 - Ballistic Missile Defense Systems (Active)
- Canceled/Obsolete
- Canceled/Obsolete
Datasheet 4820-00-618-4989
- Characteristic
- Specifications
- FIIG
- Specifications
- A046B0
- Adjustable Pressure Range [CQCY]
- +10.0/+30.0 Pounds Per Square Inch
- Connection Style [AHNC]
- Plain (Pipe) 1St End
- Connection Type [AWLS]
- Threaded External Pipe 1St End
- Disk Loading Method [ADSU]
- Spring
- Features Provided [CBBL]
- Pressure Tight Outlet Side
- Flow Control Device [ADQU]
- Poppet
- Material [MATT]
- Copper Alloy Overall
- Media For Which Designed [MEDA]
- Refrigerant 12 4Th Response
- Media For Which Designed [MEDA]
- Acetylene 2Nd Response
- Media For Which Designed [MEDA]
- Air 1St Response
- Media For Which Designed [MEDA]
- Ammonia, Gaseous 3Rd Response
- Media For Which Designed [MEDA]
- Hydrogen 5Th Response
- Nominal Pipe Size Accommodated [AAAR]
- 0.250 Inches 1St End
- Nominal Thread Size [CQJX]
- 0.250 Inches 1St End
- Opening Pressure Setting [CSDC]
- 20.0 Pounds Per Square Inch
- Special Features [FEAT]
- Pop-Off Type
- Valve Operation Method [AQLR]
- Automatic
- Style Designator [STYL]
- Straight Thru Note: To Be Used For Valve Bodies Of One Section Only.
- Thread Direction [AAJF]
- Right-Hand 1St End
- Thread Quantity Per Inch [CMLP]
- 18 1St End
- Thread Series Designator [THSD]
- Npt 1St End
DLA Procurement Analysis 4820-00-618-4989
Management Data 4820-00-618-4989
Army
- Materiel Category and Inventory Manager:
- J
- Ground Forces Support Materiel (DLA/GSA Items)
- Appropriation and Budget Activity:
- 2
- Stock Fund Secondary Items
- Management Inventory Segment:
- 2
- Non-Repairable Items(Exclusive of Insurance and Provisioning Items)
This code will be used to identify items, which are not reparable.
- Weapons System / End Item / Homogeneous Group:
- 00
- DLA/GSA Material
DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item
- Accounting Requirements:
- X
- Expendable item.An item of Army property coded with an ARC of X in the AMDF. Expendable items require no formal accountability after issue from a stock record account.Commercial and fabricated items similar to items coded X in the AMDF are considered expendable items.
Navy
- Cognizance:
- 9B
- Navy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
NATO Stock Numbers Related to 4820-00-618-4989
Freight Information 4820-00-618-4989
4820-00-618-4989 has freight characteristics.It has a National Motor Freight Classification (NMFC) of 127220. A Sub NMFC of X. It has a NMFC Description of PRESSURE REG/RED/RELIEF VALVES NOI. 4820-00-618-4989 is rated as class 77.5 when transported by Less-Than Truckload (LTL) freight. It has a Uniform Freight Classification (UFC) number of 64490 which rates the freight between FCL and LCL. 4820-00-618-4989 has a variance between NMFC and UFC when transported by rail and the description should be consulted. It has a Water Commodity Code (WCC) of 576 for ocean manifesting and military sealift. 4820-00-618-4989 is not classified as a special type of cargo when transported by water. 4820-00-618-4989 is not a consolidation and does not exceed 84" in any dimension. It should be compatible with a standard 72" Aircraft Cargo Door when transported by air.
Procurement History 4820-00-618-4989 1 Records
Contracting Technical Data File (CTDF) 4820-00-618-4989 October 2021
Criticality and Quality
- Critical Item Code:
- Flight Safety:
- Life Support:
- Certified Samples:
- Serialization:
- First Article Test (FAT):
- Certificate of Quality Compliance:
- Production Lot Testing:
- Special Testing:
- Qualified Products List (QPL):
Commercial Properties
- Government Furnished Material:
- Government Furnished Tooling:
- Government Furnished Property:
- Price Evaluation Code:
- Diminshing Manufacturing Sources:
- Warranty:
- Commerical Off The Shelf (COTS):
- End Item Application:
- Auctioning Candidate:
- Source of Procurement:
- Contract Option:
Restrictions
- Boeing Rights Guard:
- Export Controlled:
- Controlled Technical Data Package (TDP):
- Restricted Technical Data Package (TDP):
- Contains Classified Material
- Weapons System Indicator Code (WSIC):
- N
Packaging Requirements
- Packaging Determination Table:
- Packaging Review Code:
- Special Packaging Instruction Number (SPIN):
- Special Packaging Instruction Number Revision:
- Special Packaging Instruction Number Date:
- Pallet Reference Number Required: