NSN 4820-01-046-0743 C7553A24, C7553A2-4, 4C203A2

Product Details | CHECK VALVE


4820-01-046-0743 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: C7553A24, C7553A2-4, 4C203A2, 824A4JJ, 4820-01-046-0743, 01-046-0743, 4820010460743, 010460743

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 11 AUG 1977 01-046-0743

Drawings & Photos | NSN 4820-01-046-0743



Demand History | NSN 4820-01-046-0743


Part Number Request Date QTY Origin
4C203A2 2023-06-05 3 DIBBS
824A4JJ 2023-06-05 3 DIBBS
4C203A2 2023-05-25 3 DIBBS
824A4JJ 2023-05-25 3 DIBBS
4C203A2 2019-12-05 2 DIBBS
824A4JJ 2019-12-05 2 DIBBS
4C203A2 2019-11-17 1 DIBBS
824A4JJ 2019-11-17 1 DIBBS
4820-01-046-0743 2013-11-12 4 DIBBS
4820-01-046-0743 2012-03-31 2 DIBBS

Cross Reference | NSN 4820-01-046-0743


Part Number Cage Code Manufacturer
4C203A2 82829 ALLEN AIRCRAFT PRODUCTS INC
4C203A2 99240 CRISSAIR, INC.
824A4JJ 91816 CIRCOR AEROSPACE, INC. DBA CIRCLE SEAL CONTROLS
C7553A2-4 81755 LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN AERONAUTICS

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Technical Data | NSN 4820-01-046-0743


Characteristic Specifications
MATERIAL ALUMINUM ALLOY 2024 BODY
SURFACE TREATMENT ANODIZE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION MIL-A-8625,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE
STYLE DESIGNATOR A6 STRAIGHT THRU
MEDIA FOR WHICH DESIGNED AIR 1ST RESPONSE CARBON DIOXIDE 2ND RESPONSE OXYGEN, GASEOUS 3RD RESPONSE NITROGEN, GASEOUS 4TH RESPONSE
MAXIMUM OPERATING PRESSURE 600.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 480.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED INTERNAL BOSS ALL ENDS
CONNECTION STYLE B4 GASKET SEAL ALL ENDS
THREAD SERIES DESIGNATOR UNJF ALL ENDS
NOMINAL THREAD SIZE 0.438 INCHES ALL ENDS
THREAD CLASS 3B ALL ENDS
THREAD DIRECTION RIGHT-HAND ALL ENDS
MOUNTING POSITION HORIZONTAL OR VERTICAL
SUPPLEMENTARY FEATURES FLOW CONTROL DEVICE: DIAPHRAGM

Restrictions/Controls & Freight Information | NSN 4820-01-046-0743


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:BMunitions List Item - Mutilation (MUT) to the point of scrap required. (Formerly: Demilitarization not required. Trade Security Controls (TSCs) required at disposition.)
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 051080 FAUCETS,BIBCOCKS,GATES VALVES
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 594 unknown
Originating Activity Code SU Ogden Air Logistics Center
Hill AFB, UT 84056-5609
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 4820-01-046-0743


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.
Fund CodeSFStock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Price ValidationV The current standard price has been validated.
  • The item has been analyzed in conjunction with the Zero Overpricing Program and is in the accepted price range.
  • The item was procured under open competition and under the competitive arena the price is considered fair and reasonable.
  • ZOP or Standard price challenges are permissible but must be supported by adequate justification.
Materiel Management Aggregation CodeWFSU:F-16 AIR COMBAT FIGHTER
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

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