2990-01-498-9973

Find complete technical information, availability, and procurement data for: 2990-01-498-9973
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-01-498-9973

Item Name Code

77777

Assigment Date

07/10/2002 (24 years ago)

An item designed to fit over the opening of an engine exhaust pipe or muffler to prevent the entrance of rain or foreign matter into the manifold section of a reciprocating engine while not in use. It is automatically opened when the engine is started by pressure exerted from the exhaust system. It is equipped with a hinging action and may or may not have a counter weight. Excludes:cap, protective, dust and moisture seal.

2320-01-465-2174 end item identification

Product Characteristics

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

End Item Identification: 2320-01-465-2174

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
3353139	Air Intake Adapter

FAQs

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

What is the FSCG of the NSN 2990-01-498-9973?

The FSCG of the NSN 2990-01-498-9973 is 2990

Does NSN 2990-01-498-9973 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 2990-01-498-9973 contain precious materials?

Item does not contain precious metal.

Does NSN 2990-01-498-9973 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 2990-01-498-9973 was assigned to the Federal Catalog?

It was assigned 24 years ago, on Wed, Jul 10, 2002