Product Details | SAFETY RELIEF VALVE

4820-00-068-1017 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: D559T8D28, D559T-8D-28, 26157681, 26-15768-1, 4820-00-068-1017, 00-068-1017, 4820000681017, 000681017

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1963 00-068-1017

Drawings & Photos | NSN 4820-00-068-1017


Demand History | NSN 4820-00-068-1017

Part Number Request Date QTY Origin
4820-00-068-1017 2015-08-223 11 DIBBS
4820-00-068-1017 2015-07-211 11 DIBBS
4820-00-068-1017 2012-10-278 4 DIBBS
4820-00-068-1017 2012-08-239 2 DIBBS
4820-00-068-1017 2012-03-91 1 DIBBS
4820-00-068-1017 2012-03-79 1 DIBBS
4820-00-068-1017 2011-03-84 1 DIBBS
4820-00-068-1017 2009-01-29 1 DIBBS

Cross Reference | NSN 4820-00-068-1017

Part Number Cage Code Manufacturer
26-15768-1 08903 THE BOEING COMPANY DBA BOEING
26-15768-1 81205 THE BOEING COMPANY DBA BOEING
D559T-8D-28 91816 CIRCOR AEROSPACE, INC. DBA CIRCLE SEAL CONTROLS

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Technical Data | NSN 4820-00-068-1017

Characteristic Specifications
MATERIAL STEEL COMP 303 BODY STEEL COMP 303 AND RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE STEEL COMP 303 SEAT STEEL COMP 303 STEM
MATERIAL DOCUMENT AND CLASSIFICATION FEDSTD66,AISI303/SAE30303 FED STD SINGLE MATERIAL RESPONSE BODY FEDSTD66,AISI303/SAE30303 FED STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE FEDSTD66,AISI303/SAE30303 FED STD SINGLE MATERIAL RESPONSE SEAT FEDSTD66,AISI303/SAE30303 FED STD SINGLE MATERIAL RESPONSE STEM
STYLE DESIGNATOR C4 STRAIGHT THRU
FLOW CONTROL DEVICE POPPET
MEDIA FOR WHICH DESIGNED AIR 1ST RESPONSE ALCOHOL, ETHYL 2ND RESPONSE AMMONIA, GASEOUS 3RD RESPONSE FUEL/OIL, HYDROCARBON 4TH RESPONSE HELIUM 5TH RESPONSE
MAXIMUM OPERATING PRESSURE 200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP -40.0 DEG FAHRENHEIT 1ST RESPONSE 280.0 DEG FAHRENHEIT 2ND RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL TUBE ALL ENDS
CONNECTION STYLE G42 FLARED ALL ENDS
SEAT ANGLE 37.0 DEGREES ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED 0.500 INCHES ALL ENDS
THREAD SERIES DESIGNATOR UNJF ALL ENDS
NOMINAL THREAD SIZE 0.750 INCHES ALL ENDS
THREAD CLASS 3A ALL ENDS
THREAD DIRECTION RIGHT-HAND ALL ENDS
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING 28.0 POUNDS PER SQUARE INCH
ADJUSTABLE PRESSURE RANGE 25.0 TO 75.0 POUNDS PER SQUARE INCH
FURNISHED ITEMS AND QUANTITY 1 DEFLECTOR CAP
FEATURES PROVIDED VALVE STEM LOCK SHIELD

Restrictions/Controls & Freight Information | NSN 4820-00-068-1017

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 576 unknown
Originating Activity Code XX
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 4820-00-068-1017

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 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