Product Details | CHECK VALVE

4820-00-348-8281 A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

Part Alternates: ST7M2626, ST7M262-6, 4C26603, 4C2660-3, 4820-00-348-8281, 00-348-8281, 4820003488281, 003488281

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 30 JAN 1974 00-348-8281

Drawings & Photos | NSN 4820-00-348-8281


Demand History | NSN 4820-00-348-8281

Part Number Request Date QTY Origin
4820-00-348-8281 2025-11-316 2 Malaysia
4820-00-348-8281 2025-05-140 6 Malaysia
4820-00-348-8281 2025-05-130 6 Malaysia
4820-00-348-8281 2024-10-302 30 US
4820-00-348-8281 2016-09-251 124 DIBBS
4820-00-348-8281 2016-07-207 43 DIBBS
4820-00-348-8281 2016-07-194 43 DIBBS
4820-00-348-8281 2016-05-140 71 DIBBS
4820-00-348-8281 2016-05-129 71 DIBBS
4820-00-348-8281 2015-07-211 65 DIBBS
4820-00-348-8281 2013-10-304 45 DIBBS
4820-00-348-8281 2013-10-275 29 DIBBS
4820-00-348-8281 2011-12-341 36 DIBBS
4820-00-348-8281 2010-10-287 99 DIBBS
4820-00-348-8281 2010-09-246 37 DIBBS
4820-00-348-8281 2009-10-302 35 DIBBS
4820-00-348-8281 2008-12-353 39 DIBBS

Cross Reference | NSN 4820-00-348-8281

Part Number Cage Code Manufacturer
4C2660-3 99240 CRISSAIR, INC.
ST7M262-6 76301 BOEING COMPANY, THE DBA BOEING

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Technical Data | NSN 4820-00-348-8281

Characteristic Specifications
MATERIAL STEEL COMP 630 BODY
MATERIAL DOCUMENT AND CLASSIFICATION AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE BODY
SURFACE TREATMENT PASSIVATE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE
STYLE DESIGNATOR A6 STRAIGHT THRU
FLOW CONTROL DEVICE POPPET
MEDIA FOR WHICH DESIGNED HYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP -65.0 DEG FAHRENHEIT 1ST RESPONSE 450.0 DEG FAHRENHEIT 2ND RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL BOSS ALL ENDS
CONNECTION STYLE B50 EXTERNAL SEAT FOR GASKET SEAL ALL ENDS
THREAD SERIES DESIGNATOR UNJS ALL ENDS
NOMINAL THREAD SIZE 0.719 INCHES 1ST END 0.563 INCHES 2ND END
THREAD QUANTITY PER INCH 20 ALL ENDS
THREAD CLASS 3A ALL ENDS
THREAD DIRECTION RIGHT-HAND ALL ENDS
MOUNTING POSITION HORIZONTAL
DISK LOADING METHOD SPRING
SPECIAL FEATURES THE END CONNECTION IDENTIFIED ABOVE AS THE SECOND END IS THE VALVE INLET

Restrictions/Controls & Freight Information | NSN 4820-00-348-8281

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:QStrategic List Item (SLI). Demilitarization not required. SLI are non-MLI(Munitions List Items) controlled by the U.S. Dept. of Commerce through the Export Administration Regulations (EAR) and indicated on the Commerce Control List (CCL). Each CCL entry is preceded by a four-digit Export Control Commerce Control List Item (CCLI) – MUT to the point of scrap required outside the United States. Inside the United States, MUT is required when the DEMIL integrity code (IC) is “3” and MUT is not required when the DEMIL IC is “6.”
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 095630 LAP/CONNECTING LINKS/RINGS STEEL
Less than car load rating
Less than truck load rating Q 70.0
Water commodity Code 713 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 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 4820-00-348-8281

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.
Materiel Management Aggregation CodeKCSJ:B-57 CANBERRA
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.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each