Product Details | FLAT VALVE DIAPHRAGM

4820-01-420-3999 An item in the form of one or more thin flexible sheets normally designed to form a tight seal between chambers of a valve, and to transmit motion to a valve disk either directly or through a mechanical linkage. The surface of the item(s) may not be formed or molded to have a beaded or rolled edge, ribs, or any other raised surfaces. The item may contain bolt holes and/or a center hole. Excludes DIAPHRAGM, VALVE, SPECIAL SHAPED and GASKET.20316600062Aircraft Air Conditioning, Heating, and Pressurizing Equipment48100015Valves, Powered48200018Valves, Nonpowered

Part Alternates: 9100146, B25, B-25, 4820-01-420-3999, 01-420-3999, 4820014203999, 014203999

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 16 OCT 1995 01-420-3999

Demand History | NSN 4820-01-420-3999

Part Number Request Date QTY Origin
B25 2013-08-225 2 US

Cross Reference | NSN 4820-01-420-3999

Part Number Cage Code Manufacturer
9100146 27372 LINCOLN ELECTRIC CO THE HARRIS CALORIFIC DIV
B-25 27372 LINCOLN ELECTRIC CO THE HARRIS CALORIFIC DIV

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Technical Data | NSN 4820-01-420-3999

Characteristic Specifications
SPECIAL FEATURES USED ON MODEL 25 SINGLE STAGE REGULATOR

Restrictions/Controls & Freight Information | NSN 4820-01-420-3999

Category Code Description
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.
Electro-static Discharge Susceptible:ANo known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity
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.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
No Freight Information