2990-01-687-6421

Find complete technical information, availability, and procurement data for: 2990-01-687-6421
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-01-687-6421

Item Name Code

10849

Assigment Date

04/10/2020 (6 years ago)

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes:valve (1), relief, pressure and temperature.

muffler, oval style 2 part name assigned by controlling agency, 89.28 millimeters nominal single inlet inlet outside diameter, 622.30 millimeters nominal overall length, 104.00 millimeters nominal 1st outlet outlet outside diameter

Product Characteristics

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

Overall Length: 622.30 millimeters nominal
Inlet Outside Diameter: 89.28 millimeters nominal single inlet
Outlet Outside Diameter: 104.00 millimeters nominal 1st outlet
Part Name Assigned By Controlling Agency: muffler, oval style 2

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
M080058	Exhaust Muffler
PLV-H08-3023-01	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-01-687-6421?

The FSCG of the NSN 2990-01-687-6421 is 2990

Does the NSN 2990-01-687-6421 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-01-687-6421 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 2990-01-687-6421 contain precious materials?

Item does not contain precious metal.

Does NSN 2990-01-687-6421 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 2990-01-687-6421 was assigned to the Federal Catalog?

It was assigned 6 years ago, on Fri, Apr 10, 2020