Product Details | DUCT TYPE VENTILATION HEATER

4520-00-273-1281 A heat transferring unit utilizing a separate source of steam or hot water as the heat transfer medium. It consists of finned parallel tubes joined together by a header or headers and is designed for installation in the ducts of a forced air circulating system. It may be provided with a flanged outer casing to facilitate mounting of the unit in planned or existing duct work. Circulation of the heated air is achieved by use of a blower or fan not integral with the heating unit.

Part Alternates: NSTDSIZET37M, S38026697037M, S3802-66970-37M, S380266970T37M, S3802-66970T37M, MILH16235, MIL-H-16235, 52E1000SZT37M, 4520-00-273-1281, 00-273-1281, 4520002731281, 002731281

Plumbing, Heating, and Waste Disposal Equipment | Space and Water Heating Equipment

Supply Group (FSG) NSN Assign. NIIN
45 01 JAN 1963 00-273-1281

Demand History | NSN 4520-00-273-1281

Part Number Request Date QTY Origin
4520-00-273-1281 2024-08-220 9 DIBBS
4520-00-273-1281 2024-03-80 6 DIBBS
4520-00-273-1281 2024-01-11 9 DIBBS
4520-00-273-1281 2023-05-123 8 DIBBS
4520-00-273-1281 2023-04-95 7 DIBBS
4520-00-273-1281 2022-08-222 6 DIBBS
4520-00-273-1281 2021-11-308 6 DIBBS
4520-00-273-1281 2020-04-117 12 DIBBS
4520-00-273-1281 2020-02-41 10 DIBBS
4520-00-273-1281 2019-03-68 9 DIBBS
4520-00-273-1281 2016-05-137 16 DIBBS
4520-00-273-1281 2015-07-203 25 DIBBS
4520-00-273-1281 2015-05-133 20 DIBBS
4520-00-273-1281 2015-03-61 12 DIBBS
4520-00-273-1281 2014-12-351 7 DIBBS
4520-00-273-1281 2014-11-322 3 DIBBS
4520-00-273-1281 2014-09-272 8 DIBBS
4520-00-273-1281 2014-01-29 11 DIBBS
4520-00-273-1281 2013-05-150 2 DIBBS
4520-00-273-1281 2013-03-79 2 DIBBS
4520-00-273-1281 2012-09-249 3 DIBBS
4520-00-273-1281 2011-07-195 20 DIBBS
4520-00-273-1281 2011-05-144 7 DIBBS
4520-00-273-1281 2010-12-344 6 DIBBS
4520-00-273-1281 2010-09-251 2 DIBBS

Cross Reference | NSN 4520-00-273-1281

Part Number Cage Code Manufacturer
52E1000SZT37M 38450 ENGINEERED COIL COMPANY DBA DRS MARLO COIL
MIL-H-16235 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
NSTDSIZET37M 41197 MODINE MFG CO
S3802-66970-37M 80064 NAVAL SHIP SYSTEMS COMMAND
S3802-66970T37M 80064 NAVAL SHIP SYSTEMS COMMAND

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Technical Data | NSN 4520-00-273-1281

Characteristic Specifications
HEAT DELIVERY RATE ANY ACCEPTABLE
HEATING ELEMENT TYPE HOT WATER COIL OR STEAM COIL
HEAT MEDIUM TYPE HOT WATER OR STEAM
MAXIMUM PRESSURE LIMIT 35.0 POUNDS PER SQUARE INCH GAGE
MOUNTING TYPE VENTILATION DUCT
HEIGHT 39.250 INCHES NOMINAL
WIDTH 53.000 INCHES NOMINAL
DEPTH 7.000 INCHES NOMINAL
DUCT HEIGHT 36.250 INCHES
DUCT WIDTH 42.000 INCHES
HEAT OUTLET QUANTITY 1
HEAT DELIVERY DIRECTION HORIZONTAL
HEAT DISCHARGE OUTLET TYPE STATIONARY
HEAT DIRECTING DEVICE RADIAL DIFFUSER-VERTICAL VANES
INCLOSURE MATERIAL STEEL
SURFACE TREATMENT ZINC
OPERATING CONTROL TYPE ANY ACCEPTABLE
SPECIAL FEATURES TUBE HAS 60 FINS PER FT.,CONFORMS TO MIL-H-16235C
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL-H-16235

Restrictions/Controls & Freight Information | NSN 4520-00-273-1281

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 026520 HEATERS WATER
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 72E 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 E Engineer supplies, other than those listed under code B.
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 4520-00-273-1281

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