78J55

View detailed technical data, stock status, and sourcing information for: 78J55
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Federal Supply Group

Refrigeration, Air Conditioning, and Air Circulating Equipment

Federal Supply Classification

4140 Blower Equipment, Air Circulators and Fans

National Stock Number

4140-01-121-2176

Item Name Code

04245

Assigment Date

11/01/1981 (44 years ago)

A nonpositive displacement mechanical device with guide vanes and having an axial fan impeller(s) inclosed within a tubular housing. It is designed primarily for duct installation to move air or gas axially over a wide range of volumes and pressures.

1 stage quantity, single speed speed adjustments, 15.375 inches nominal length, 50.0 celsius ambient temp at full rated power, inward flow direction

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Stage Quantity: 1
Speed Adjustments: single speed
Length: 15.375 inches nominal
Flow Direction: inward
Ambient Temp At Full Rated Power: 50.0 celsius
Operating Speed At Rated Capacity In Rpm: 1750.0
End Item Identification: mil-c-2939 size 55,class uw unit cooler
Electrical Connection Type: wire lead
Static Pressure At Specified Air Flow Rate: 1.0 inches of water
Drive Type: direct
Prime Mover Type: electric motor
Inclosure Type: fully inclosed
Mounting Facility Type And Quantity: 1 flange and 12 unthreaded hole
Rotation Direction For Which Designed: clockwise
Features Provided: safety impeller guard
Voltage In Volts And Current Type: 115.0 ac
Prime Mover Power Rating: 0.200 horsepower
Housing Inside Diameter: 13.000 inches nominal
Phase: single
Special Features: 18 in. sq flange w/mtg holes at discharge end
Frequency In Hertz: 60.0
Material: aluminum alloy overall
Surface Treatment: chromate zinc and varnish housing inside
Surface Treatment: chromate zinc housing outside
Style Designator: fixed

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
768-7855 W/131805055413055 MOTOR	Vaneaxial Fan
78J55	Vaneaxial Fan
VFV5500	Vaneaxial Fan

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 4140-01-121-2176?

The FSCG of the NSN 4140-01-121-2176 is 4140

Does the NSN 4140-01-121-2176 have a Schedule B code assigned?

Yes, the Schedule B code is 8414599080

Does NSN 4140-01-121-2176 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 4140-01-121-2176 contain precious materials?

Item does not contain precious metal.

Does NSN 4140-01-121-2176 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 4140-01-121-2176 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Sun, Nov 1, 1981