Product Details | SAFETY RELIEF VALVE

4820-01-168-1877 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: D49-60UU-1/2-3/4 , D49-60UU-12 1/2IN, D4960UU1212IN, D4960UU1234, MILV22549, MIL-V-22549, 189RCS168X9524W/VIT4101T5400, 189RCS168X9524WVIT4101T5400, 9524, 9524 W/VITON PKG 4101T5400PSI, 9524WVITONPKG4101T5400PSI, 4820-01-168-1877, 01-168-1877, 4820011681877, 011681877

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 14 DEC 1983 01-168-1877

Drawings & Photos | NSN 4820-01-168-1877


Demand History | NSN 4820-01-168-1877

Part Number Request Date QTY Origin
4820-01-168-1877 2014-11-315 4 DIBBS
4820-01-168-1877 2014-10-303 4 DIBBS
4820-01-168-1877 2013-11-328 3 DIBBS
4820-01-168-1877 2013-08-216 3 DIBBS
4820-01-168-1877 2012-11-325 2 DIBBS
4820-01-168-1877 2010-07-207 1 DIBBS

Cross Reference | NSN 4820-01-168-1877

Part Number Cage Code Manufacturer
189RCS168X9524W/VIT4101T5400 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
9524 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
9524 W/VITON PKG 4101T5400PSI 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
D49-60UU-1/2-3/4 5P967 DANTE VALVE COMPANY INC
D49-60UU-12 1/2IN 65079 DANCO VALVE COMPANY
D49-60UU-12 1/2IN 80070 LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN
MIL-V-22549 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY

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Technical Data | NSN 4820-01-168-1877

Characteristic Specifications
MATERIAL STEEL COMP 316 BODY STEEL COMP 303 FLOW CONTROL DEVICE STEEL COMP 304 SEAT
MATERIAL DOCUMENT AND CLASSIFICATION AISI 316 ASSN STD SINGLE MATERIAL RESPONSE BODY AISI 303 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE FED STD 66,AISI 304/SAE 30304 FED STD SINGLE MATERIAL RESPONSE SEAT
STYLE DESIGNATOR C1 ANGLE
FLOW CONTROL DEVICE DISK
MEDIA FOR WHICH DESIGNED AIR 1ST RESPONSE WATER-OIL-GAS 2ND RESPONSE
MAXIMUM OPERATING PRESSURE 6000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 180.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE UNTHREADED INTERNAL TUBE 1ST END UNTHREADED INTERNAL TUBE 2ND END
CONNECTION STYLE G30A SOCKET WITH BRAZING RING 1ST END G20A SOCKET 2ND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED 0.750 INCHES 1ST END 0.500 INCHES 2ND END
DISK LOADING METHOD SPRING
ADJUSTABLE PRESSURE RANGE 4101.0 TO 5400.0 POUNDS PER SQUARE INCH
SPECIAL FEATURES WITH VITON PACKING
III END ITEM IDENTIFICATION LOS ANGELES CLASS SSN(688)
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL-V-22549

Restrictions/Controls & Freight Information | NSN 4820-01-168-1877

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 576 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 B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
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 4820-01-168-1877

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 CodesYTERMINAL ITEM #(NON-STOCKED ITEMS) Future procurement is not authorized. No wholesale stock is available for issue. 1. Requisitions will not be processed to the wholesale manager. 2. Internal Service/agency requisitioning may be continued in accordance with the Service/agency requisitioning policies.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each