Product Details | SAFETY RELIEF VALVE

4820-00-999-5920 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: BL40384, BL4038-4, 10086269 , 4820-00-999-5920, 00-999-5920, 4820009995920, 009995920

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 MAR 1966 00-999-5920

Drawings & Photos | NSN 4820-00-999-5920


Demand History | NSN 4820-00-999-5920

Part Number Request Date QTY Origin
4820-00-999-5920 2025-10-287 3 United States
BL-4038-4 2025-04-118 62 DIBBS
PSLX0500250B 2025-04-118 62 DIBBS
BL-4038-4 2025-03-90 9 DIBBS
PSLX0500250B 2025-03-90 9 DIBBS
BL-4038-4 2025-03-77 9 DIBBS
PSLX0500250B 2025-03-77 9 DIBBS
BL-4038-4 2025-01-21 8 DIBBS
PSLX0500250B 2025-01-21 8 DIBBS
BL-4038-4 2024-08-222 45 DIBBS
PSLX0500250B 2024-08-222 45 DIBBS
BL-4038-4 2024-07-211 45 DIBBS
PSLX0500250B 2024-07-211 45 DIBBS
BL-4038-4 2024-05-145 45 DIBBS
PSLX0500250B 2024-05-145 45 DIBBS
BL-4038-4 2024-05-134 45 DIBBS
PSLX0500250B 2024-05-134 45 DIBBS
BL-4038-4 2024-04-100 74 DIBBS
PSLX0500250B 2024-04-100 74 DIBBS
BL-4038-4 2023-11-323 38 DIBBS
PSLX0500250B 2023-11-323 38 DIBBS
4820-00-999-5920 2023-09-259 2 United States
BL-4038-4 2023-09-250 28 DIBBS
PSLX0500250B 2023-09-250 28 DIBBS
4820-00-999-5920 2023-09-249 1 Germany
BL-4038-4 2023-05-139 8 DIBBS
PSLX0500250B 2023-05-139 8 DIBBS
BL-4038-4 2023-05-128 8 DIBBS
PSLX0500250B 2023-05-128 8 DIBBS
BL-4038-4 2023-04-117 8 DIBBS
PSLX0500250B 2023-04-117 8 DIBBS
BL-4038-4 2022-08-243 2 DIBBS
PSLX0500250B 2022-08-243 2 DIBBS
4820-00-999-5920 2021-12-350 2 Germany
BL-4038-4 2021-11-326 15 DIBBS
PSLX0500250B 2021-11-326 15 DIBBS
BL-4038-4 2021-11-318 15 DIBBS
PSLX0500250B 2021-11-318 15 DIBBS
BL-4038-4 2021-10-291 8 DIBBS
PSLX0500250B 2021-10-291 8 DIBBS
BL-4038-4 2021-10-280 8 DIBBS
PSLX0500250B 2021-10-280 8 DIBBS
4820-00-999-5920 2021-08-225 3 Germany
3R19824 2021-07-208 16 DIBBS
BL-4038-4 2021-07-208 16 DIBBS
PSLX0500250B 2021-07-208 16 DIBBS
3R19824 2020-10-293 16 DIBBS
BL-4038-4 2020-10-293 16 DIBBS
PSLX0500250B 2020-10-293 16 DIBBS
3R19824 2020-10-282 16 DIBBS
BL-4038-4 2020-10-282 16 DIBBS
PSLX0500250B 2020-10-282 16 DIBBS
3R19824 2019-02-42 2 DIBBS
BL-4038-4 2019-02-42 2 DIBBS
PSLX0500250B 2019-02-42 2 DIBBS
3R19824 2019-02-36 3 DIBBS
BL-4038-4 2019-02-36 3 DIBBS
PSLX0500250B 2019-02-36 3 DIBBS
3R19824 2019-01-31 2 DIBBS
BL-4038-4 2019-01-31 2 DIBBS
PSLX0500250B 2019-01-31 2 DIBBS
3R19824 2019-01-24 3 DIBBS
BL-4038-4 2019-01-24 3 DIBBS
PSLX0500250B 2019-01-24 3 DIBBS
3R19824 2019-01-14 9 DIBBS
BL-4038-4 2019-01-14 9 DIBBS
PSLX0500250B 2019-01-14 9 DIBBS
3R19824 2019-01-03 9 DIBBS
BL-4038-4 2019-01-03 9 DIBBS
PSLX0500250B 2019-01-03 9 DIBBS
4820-00-999-5920 2018-11-317 20 DIBBS
4820-00-999-5920 2018-11-305 20 DIBBS
4820-00-999-5920 2018-10-274 22 DIBBS
4820-00-999-5920 2018-09-264 33 DIBBS
4820-00-999-5920 2018-09-263 22 DIBBS
4820-00-999-5920 2018-09-253 33 DIBBS
4820-00-999-5920 2018-08-225 10 DIBBS
4820-00-999-5920 2018-08-214 10 DIBBS
4820-00-999-5920 2018-06-152 17 us
4820-00-999-5920 2018-05-140 17 DIBBS
4820-00-999-5920 2018-05-135 9 us
4820-00-999-5920 2018-04-116 9 DIBBS
4820-00-999-5920 2018-04-99 20 DIBBS
4820-00-999-5920 2017-06-165 14 DIBBS
4820-00-999-5920 2017-06-163 13 DIBBS
4820-00-999-5920 2017-05-141 14 DIBBS
4820-00-999-5920 2017-01-04 9 DIBBS
BL40384 2016-09-258 15 United States
4820-00-999-5920 2016-08-237 15 DIBBS
4820-00-999-5920 2016-06-158 19 DIBBS
4820-00-999-5920 2016-05-145 19 DIBBS
4820-00-999-5920 2016-03-67 23 DIBBS
4820-00-999-5920 2016-02-54 23 DIBBS
4820-00-999-5920 2016-01-10 33 DIBBS
4820-00-999-5920 2015-07-193 13 DIBBS
4820-00-999-5920 2015-03-68 22 DIBBS
4820-00-999-5920 2015-01-29 1 United States
4820-00-999-5920 2014-11-334 21 DIBBS
4820-00-999-5920 2014-10-296 7 DIBBS
4820-00-999-5920 2014-06-155 5 DIBBS
4820-00-999-5920 2014-04-117 1 DIBBS
4820-00-999-5920 2014-04-98 9 DIBBS
4820-00-999-5920 2012-07-199 20 DIBBS
4820-00-999-5920 2012-05-150 0 DIBBS
4820-00-999-5920 2012-05-125 13 DIBBS
4820-00-999-5920 2012-05-122 32 DIBBS
4820-00-999-5920 2011-12-339 9 DIBBS
BL40384 2008-03-74 1 US

Cross Reference | NSN 4820-00-999-5920

Part Number Cage Code Manufacturer
BL4038-4 08484 BREEZE-EASTERN CORPORATION

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Restrictions/Controls & Freight Information | NSN 4820-00-999-5920

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 SG 403 SCMS/GUED
5215 Thurlow St, Suite 5, Bldg 70C
Wright-Patterson AFB OH 45433
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity V Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above.
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

Management | NSN 4820-00-999-5920

Category Code Description
Materiel Category and Inventory ManagerJ Ground Forces Support Materiel (DLA/GSA Items)
Appropriation and Budget Activity2 Stock Fund Secondary Items
Management Inventory Segment2 NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic Code0 Medical Materiel
Weapons Systems/End Item or Homogeneous Group00DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item
Accounting Requirements CodeX 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.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDADepartment of the Army
Service OrganizationAU.S. Army
ReparabilityZThis is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
Acquisition Advice CodesDDoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each
Category Code Description
Budget Code9 General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors.
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.
Fund CodeSFStock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Materiel Management Aggregation CodeSXSX:AF SICA RESIDUAL MMAC-OC-ALC
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
Acquisition Advice CodesDDoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each
Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesDDoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each