04-21608

View detailed technical data, stock status, and sourcing information for: 04-21608
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-01-631-0096

Item Name Code

10849

Assigment Date

08/26/2014 (11 years ago)

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes:disk, valve, graphite impregnated and lubricated items.

380.72 millimeters nominal overall width, 253.72 millimeters nominal overall length, 6115-01-561-7788,generator set,diesel engine end item identification, 536.0 millimeters nominal overall height, unthreaded single inlet inlet connection type

Product Characteristics

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

Overall Length: 253.72 millimeters nominal
Overall Height: 536.0 millimeters nominal
Overall Width: 380.72 millimeters nominal
Inlet Connection Type: unthreaded single inlet
End Item Identification: 6115-01-561-7788,generator set,diesel engine
Body Shape: rectangular
Operating Position: vertical
Inlet Location: bottom single inlet
Outlet Connection Type: threaded 1st outletthreaded single inlet
Outlet Location: side 1st outletside single inlet
Outlet Flange Shape: round 1st outlet
Outlet Thread Size: 3 inch pipe 1st outlet
Outlet Thread Direction: right-hand 1st outlet
Outlet Thread Location: external 1st outlet
Part Name Assigned By Controlling Agency: muffle 60kw
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
04-21608	Exhaust Muffler
A029W102	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-01-631-0096?

The FSCG of the NSN 2990-01-631-0096 is 2990

Does the NSN 2990-01-631-0096 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-01-631-0096 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 2990-01-631-0096 contain precious materials?

Item does not contain precious metal.

Does NSN 2990-01-631-0096 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 2990-01-631-0096 was assigned to the Federal Catalog?

It was assigned 11 years ago, on Tue, Aug 26, 2014