64180M91

View detailed technical data, stock status, and sourcing information for: 64180M91
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part 64180M91 to receive an up to date pricing and availability quote by email.

Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-122-0658

Item Name Code

61446

Assigment Date

10/28/1968 (57 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.

w/mounting hardware special features, 2.688 inches pipe outside diameter accommodated, steel material

Product Characteristics

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

Pipe Outside Diameter Accommodated: 2.688 inches
Special Features: w/mounting hardware
Material: steel

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2990-00-058-6567	No Name Available	01/01/1977
2990-00-419-9230	No Name Available	05/01/1977
2990-00-489-5911	No Name Available	03/01/1977
2990-00-497-1878	No Name Available	03/01/1977
2990-00-570-9404	No Name Available	12/01/1976
2990-00-630-0053	No Name Available	02/01/1978
2990-00-813-8208	No Name Available	08/30/1972
2990-00-821-2063	No Name Available	05/01/1977
2990-00-891-6784	No Name Available	08/30/1972
2990-00-920-0942	No Name Available	08/30/1972
2990-00-927-4217	No Name Available	03/01/1977
2990-00-947-6064	No Name Available	01/01/1977
2990-01-480-9201	No Name Available	07/01/2019

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
11007SIZE6	Muffler- Protective Cap Assembly
13217E0544	Muffler- Protective Cap Assembly
13217E0544-2	Muffler- Protective Cap Assembly
283280R91	Muffler- Protective Cap Assembly
321574R91	Muffler- Protective Cap Assembly
538454	Muffler- Protective Cap Assembly
538800-2	Muffler- Protective Cap Assembly
565317	Muffler- Protective Cap Assembly
64180M91	Muffler- Protective Cap Assembly
66C43118	Muffler- Protective Cap Assembly
71277-7	Muffler- Protective Cap Assembly
764180M91	Muffler- Protective Cap Assembly
77-250	Muffler- Protective Cap Assembly
7X	Muffler- Protective Cap Assembly
C4-30	Muffler- Protective Cap Assembly
D28028	Muffler- Protective Cap Assembly
FB0019	Muffler- Protective Cap Assembly
P27-0534	Muffler- Protective Cap Assembly
Q88-29	Muffler- Protective Cap Assembly
RC-250	Muffler- Protective Cap Assembly

FAQs

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

What is the FSCG of the NSN 2990-00-122-0658?

The FSCG of the NSN 2990-00-122-0658 is 2990

Does the NSN 2990-00-122-0658 have a Schedule B code assigned?

Yes, the Schedule B code is 8412909080

Does NSN 2990-00-122-0658 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 2990-00-122-0658 contain precious materials?

Precious metal content is unknown

Does NSN 2990-00-122-0658 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 2990-00-122-0658 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Mon, Oct 28, 1968