Product Details | SAFETY RELIEF VALVE

4820-01-249-9964 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: D41P-30UU-08 1/2 IN, D41P30UU0812IN, D41P-30UU-08H-1/2-1/2 , D41P30UU08H1212, 203567940SS 1/2IN, 203567940SS 1-2, 203567940SS12, 203567940SS12IN, 20356A01C2901, 4820-01-249-9964, 01-249-9964, 4820012499964, 012499964

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 21 FEB 1987 01-249-9964

Demand History | NSN 4820-01-249-9964

Part Number Request Date QTY Origin
20356A01C2901 2025-08-233 2 DIBBS
D41P-30UU-08H-1/2-1/2 2025-08-233 2 DIBBS
20356A01C2901 2025-04-118 1 DIBBS
D41P-30UU-08H-1/2-1/2 2025-04-118 1 DIBBS
20356A01C2901 2025-03-83 2 DIBBS
D41P-30UU-08H-1/2-1/2 2025-03-83 2 DIBBS
20356A01C2901 2025-03-72 2 DIBBS
D41P-30UU-08H-1/2-1/2 2025-03-72 2 DIBBS
20356A01C2901 2025-02-49 1 DIBBS
D41P-30UU-08H-1/2-1/2 2025-02-49 1 DIBBS
20356A01C2901 2025-02-37 1 DIBBS
D41P-30UU-08H-1/2-1/2 2025-02-37 1 DIBBS
20356A01C2901 2024-08-225 2 DIBBS
D41P-30UU-08H-1/2-1/2 2024-08-225 2 DIBBS
20356A01C2901 2024-07-184 2 DIBBS
D41P-30UU-08H-1/2-1/2 2024-07-184 2 DIBBS
20356A01C2901 2024-05-144 1 DIBBS
D41P-30UU-08H-1/2-1/2 2024-05-144 1 DIBBS
20356A01C2901 2024-05-123 2 DIBBS
D41P-30UU-08H-1/2-1/2 2024-05-123 2 DIBBS
20356A01C2901 2023-10-289 2 DIBBS
D41P-30UU-08H-1/2-1/2 2023-10-289 2 DIBBS
20356A01C2901 2023-10-278 2 DIBBS
D41P-30UU-08H-1/2-1/2 2023-10-278 2 DIBBS
20356A01C2901 2022-06-172 1 DIBBS
D41P-30UU-08H-1/2-1/2 2022-06-172 1 DIBBS
20356A01C2901 2022-06-160 1 DIBBS
D41P-30UU-08H-1/2-1/2 2022-06-160 1 DIBBS
20356A01C2901 2022-03-62 1 DIBBS
D41P-30UU-08H-1/2-1/2 2022-03-62 1 DIBBS
20356A01C2901 2021-11-319 1 DIBBS
D41P-30UU-08H-1/2-1/2 2021-11-319 1 DIBBS
20356A01C2901 2021-10-304 1 DIBBS
D41P-30UU-08H-1/2-1/2 2021-10-304 1 DIBBS
20356A01C2901 2020-12-352 1 DIBBS
D41P-30UU-08H-1/2-1/2 2020-12-352 1 DIBBS
20356A01C2901 2020-04-121 1 DIBBS
D41P-30UU-08H-1/2-1/2 2020-04-121 1 DIBBS
4820-01-249-9964 2018-06-178 1 DIBBS
4820-01-249-9964 2018-06-165 1 DIBBS
4820-01-249-9964 2016-05-144 1 DIBBS
4820-01-249-9964 2016-05-133 1 DIBBS
4820-01-249-9964 2015-06-162 1 DIBBS
4820-01-249-9964 2013-09-262 2 DIBBS
4820-01-249-9964 2011-01-08 3 DIBBS

Cross Reference | NSN 4820-01-249-9964

Part Number Cage Code Manufacturer
203567940SS 1-2 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
203567940SS 1/2IN 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20356A01C2901 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20356A01C2901 15187 PENTAIR VALVES & CONTROLS US LP DBA NAVY PRODUCT TEAM
D41P-30UU-08 1/2 IN 65079 DANCO VALVE COMPANY
D41P-30UU-08H-1/2-1/2 5P967 DANTE VALVE COMPANY INC
D41P-30UU-08H-1/2-1/2 65079 DANCO VALVE COMPANY

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Technical Data | NSN 4820-01-249-9964

Characteristic Specifications
MATERIAL STEEL CORROSION RESISTING BODY
VALVE OPERATION METHOD AUTOMATIC
ADJUSTABLE PRESSURE RANGE 2901.0 TO 4000.0 POUNDS PER SQUARE INCH
SPECIAL FEATURES VALVE SZ 0.500 IN.
III END ITEM IDENTIFICATION USNS HENRY J. KAISER CLASS TAO

Restrictions/Controls & Freight Information | NSN 4820-01-249-9964

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
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 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 4820-01-249-9964

Category Code Description
Cognizance Codes3BNavy-owned stocks of field level repairable 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 CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each