BC2918B-21

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BC2918B-21
Federal Supply Group
Refrigeration, Air Conditioning, and Air Circulating Equipment
National Stock Number
4140-01-024-1331
Item Name Code
04254
Assigment Date
07/06/1976 (50 years ago)

A nonpositive displacement mechanical device having a centrifugal fan impeller inclosed within a housing. It is designed to move air or gas over a wide range of volumes and pressures. The air or gas is drawn in axially and discharged radially or drawn in radially and discharged axially by centrifugal force through an outlet in the housing.

12.476 inches nominal width, single speed speed adjustments, 1 stage quantity, 7.219 inches nominal length, 1650.0 operating speed at rated capacity in rpm

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
Width
12.476 inches nominal
Length
7.219 inches nominal
Operating Speed At Rated Capacity In Rpm
1650.0
Electrical Connection Type
wire lead
Outlet Inside Width
4.188 inches nominal
Outlet Inside Height
1.422 inches nominal
Static Pressure At Specified Air Flow Rate
0.6 inches of water
Drive Type
direct
Prime Mover Type
electric motor
Inclosure Type
fully inclosed
Mounting Facility Type And Quantity
2 flange and 8 threaded hole
Rotation Direction For Which Designed
clockwise
Air Flow Rate
260.0 cubic feet per minute nominal
Outlet Location
top
Voltage In Volts And Current Type
115.0 ac
Discharge Direction
vertical up
Phase
single
Height
7.781 inches nominal
Material
steel overall
Surface Treatment
enamel housing
Style Designator
fixed, dual impeller, rectangular outlet

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
791703 PC 107 Centrifugal Fan
791703 PIECE 10 Centrifugal Fan
917139-1 Centrifugal Fan
BC2918B-21 Centrifugal Fan
C7Z22P-1A Centrifugal Fan

FAQs

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

What is the FSCG of the NSN 4140-01-024-1331?
The FSCG of the NSN 4140-01-024-1331 is 4140
Does the NSN 4140-01-024-1331 have a Schedule B code assigned?
Yes, the Schedule B code is 8414599080
Does NSN 4140-01-024-1331 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 4140-01-024-1331 contain precious materials?
Precious metal content is unknown
Does NSN 4140-01-024-1331 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 4140-01-024-1331 was assigned to the Federal Catalog?
It was assigned 50 years ago, on Tue, Jul 6, 1976

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