Product Details | CHECK VALVE

4820-01-195-3768 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: 1281N 4 INCH, 1281N 400, 1281N400, 1281N4INCH, 5021-B 4IN, 5021B4IN, 4820-01-195-3768, 01-195-3768, 4820011953768, 011953768

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 28 NOV 1984 01-195-3768

Drawings & Photos | NSN 4820-01-195-3768


Demand History | NSN 4820-01-195-3768

Part Number Request Date QTY Origin
1281N 400 2024-05-134 16 DIBBS
1281N 400 2024-05-123 16 DIBBS
4820-01-195-3768 2024-04-109 3 Saudi Arabia
1281N 400 2023-04-110 7 DIBBS
1281N 400 2023-04-99 7 DIBBS
1281N 400 2020-10-294 11 DIBBS
4820-01-195-3768 2020-07-205 2 Saudi Arabia
1281N 400 2020-05-152 2 DIBBS
1281N 400 2020-05-133 1 DIBBS
1281N 400 2020-04-104 16 DIBBS
1281N 400 2020-03-79 14 DIBBS
4820-01-195-3768 2018-11-305 12 DIBBS
4820-01-195-3768 2017-10-299 1 DIBBS-RFPs
4820-01-195-3768 2016-03-63 8 DIBBS
4820-01-195-3768 2015-12-361 8 DIBBS
4820-01-195-3768 2015-11-327 3 DIBBS
4820-01-195-3768 2014-08-218 15 DIBBS
4820-01-195-3768 2014-05-138 7 DIBBS
4820-01-195-3768 2014-01-26 17 DIBBS
4820-01-195-3768 2012-08-237 6 DIBBS
4820-01-195-3768 2012-06-181 1 DIBBS
4820-01-195-3768 2011-08-217 19 DIBBS
4820-01-195-3768 2010-10-303 3 DIBBS
4820-01-195-3768 2010-10-301 2 DIBBS
4820-01-195-3768 2010-10-299 4 DIBBS
4820-01-195-3768 2010-10-293 7 DIBBS

Cross Reference | NSN 4820-01-195-3768

Part Number Cage Code Manufacturer
1281N 4 INCH 76364 MILWAUKEE VALVE COMPANY, INC. DBA HAMMOND
1281N 400 76364 MILWAUKEE VALVE COMPANY, INC. DBA HAMMOND
5021-B 4IN 91643 SERVICE BRASS & ALUMINUM FOUNDRY CO. INC.

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Technical Data | NSN 4820-01-195-3768

Characteristic Specifications
MATERIAL COPPER ALLOY BODY COPPER ALLOY FLOW CONTROL DEVICE
STYLE DESIGNATOR A2A STRAIGHT THRU FLANGED ENDS
VALVE SIZE 4.000 INCHES
FACE TO FACE DISTANCE 11.750 INCHES
FLOW CONTROL DEVICE DISK
MAXIMUM OPERATING PRESSURE 200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE FLANGE ALL ENDS
FLANGE SHAPE ROUND WITH HOLES ALL ENDS
NOMINAL OUTSIDE DIAMETER 6.625 INCHES ALL ENDS
NOMINAL THICKNESS 0.938 INCHES ALL ENDS
BOLT HOLE QUANTITY 8 ALL ENDS
BOLT HOLE NOMINAL DIAMETER 0.562 INCHES ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER 5.500 INCHES ALL ENDS
FLANGE FACE DESIGN PLAIN ALL ENDS
MOUNTING POSITION HORIZONTAL OR VERTICAL

Restrictions/Controls & Freight Information | NSN 4820-01-195-3768

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 051080 FAUCETS,BIBCOCKS,GATES VALVES
Less than car load rating
Less than truck load rating W Rating Variable
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 4820-01-195-3768

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 CodesDDoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each