2990-01-496-4023

Find complete technical information, availability, and procurement data for: 2990-01-496-4023
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-01-496-4023

Item Name Code

60804

Assigment Date

04/15/2002 (24 years ago)

A mechanical device employing a flexible dished diaphragm to convert air pressure into physical force to actuate the brake shoes of a vehicle. See also actuator, safety; actuator, spring brake; and rotochamber.

prebent design form, 0.0650 inches nominal wall thickness, 19207 end item source, truck, utility end item name, truck, utility hmmwv nsn 2320-01-371-9583 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.

Wall Thickness: 0.0650 inches nominal
End Item Identification: truck, utility hmmwv nsn 2320-01-371-9583
End Item Source: 19207
Design Form: prebent
End Item Name: truck, utility
End Item Model Number: hmmwv p/n 8750308
Usage Location: exhaust pipe
Nominal Outside Diameter: 4.470 inches
Nominal Overall Length: 60.400 inches
Special Features: called exhaust, fording stainless steel; exhaust pipe assembly consists of flanges, shields and a mounting bracket welded together; flange and shield material spec astm a240 type 439 or 409, shield material 0.060 in. thk; two flanges for mounting shield p/n 12339838.
Material: steel corrosion resisting
Material Document And Classification: astm a268 type 439 assn std single material response
Surface Treatment: paint
Surface Treatment Document And Classification: mil-p-14105, green 383 mil spec single treatment response
Furnished Items And Quantity: 3 flange and 1 mounting bracket

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2990-01-210-2176	No Name Available	11/01/2005

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
12469361	Exhaust Pipe

FAQs

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

What is the FSCG of the NSN 2990-01-496-4023?

The FSCG of the NSN 2990-01-496-4023 is 2990

Does the NSN 2990-01-496-4023 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-01-496-4023 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 2990-01-496-4023 contain precious materials?

Item does not contain precious metal.

Does NSN 2990-01-496-4023 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 2990-01-496-4023 was assigned to the Federal Catalog?

It was assigned 24 years ago, on Mon, Apr 15, 2002