20-02-021B

View detailed technical data, stock status, and sourcing information for: 20-02-021B
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-01-219-8758

Item Name Code

10849

Assigment Date

11/04/1985 (40 years ago)

A self-contained unit designed to perform the functions of cooling, circulating, filtering, dehumidifying or otherwise processing of air. It may also be equipped to perform the additional functions of heating or humidifying. It may be the air cycle type used in aircraft or the vapor cycle type applicable to ground or aerospace equipment. Excludes:environmental control unit, personnel, self-contained.

straight through muffler design, oval body shape, 3 tube quantity, 15.000 inches nominal overall length, 3.000 inches nominal overall height

Product Characteristics

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

Overall Length: 15.000 inches nominal
Overall Height: 3.000 inches nominal
Muffler Design: straight through
Tube Quantity: 3
Body Shape: oval
Operating Position: horizontal
Outlet Integral Tail Pipe Length: 1.500 inches nominal 1st outlet
Material: steel location not otherwise specified

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
20-02-021B	Exhaust Muffler
A3030076	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-01-219-8758?

The FSCG of the NSN 2990-01-219-8758 is 2990

Does the NSN 2990-01-219-8758 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-01-219-8758 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 2990-01-219-8758 contain precious materials?

Item does not contain precious metal.

Does NSN 2990-01-219-8758 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 2990-01-219-8758 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Mon, Nov 4, 1985